diff --git a/web/ui/mantine-ui/src/api/response-types/rules.ts b/web/ui/mantine-ui/src/api/response-types/rules.ts
index eba15a6169..63d63d3d4b 100644
--- a/web/ui/mantine-ui/src/api/response-types/rules.ts
+++ b/web/ui/mantine-ui/src/api/response-types/rules.ts
@@ -46,6 +46,14 @@ interface RuleGroup {
   lastEvaluation: string;
 }
 
+type AlertingRuleGroup = Omit<RuleGroup, "rules"> & {
+  rules: AlertingRule[];
+};
+
 export interface RulesMap {
   groups: RuleGroup[];
 }
+
+export interface AlertingRulesMap {
+  groups: AlertingRuleGroup[];
+}
diff --git a/web/ui/mantine-ui/src/badge.module.css b/web/ui/mantine-ui/src/badge.module.css
new file mode 100644
index 0000000000..80eb3565d2
--- /dev/null
+++ b/web/ui/mantine-ui/src/badge.module.css
@@ -0,0 +1,49 @@
+.statsBadge {
+  background-color: light-dark(
+    var(--mantine-color-gray-1),
+    var(--mantine-color-gray-9)
+  );
+  color: light-dark(var(--mantine-color-gray-7), var(--mantine-color-gray-5));
+}
+
+.labelBadge {
+  background-color: light-dark(
+    var(--mantine-color-gray-1),
+    var(--mantine-color-gray-9)
+  );
+  color: light-dark(var(--mantine-color-gray-7), var(--mantine-color-gray-5));
+}
+
+.healthOk {
+  background-color: light-dark(
+    var(--mantine-color-green-1),
+    var(--mantine-color-green-9)
+  );
+  color: light-dark(var(--mantine-color-green-9), var(--mantine-color-green-1));
+}
+
+.healthErr {
+  background-color: light-dark(
+    var(--mantine-color-red-1),
+    darken(var(--mantine-color-red-9), 0.25)
+  );
+  color: light-dark(var(--mantine-color-red-9), var(--mantine-color-red-1));
+}
+
+.healthWarn {
+  background-color: light-dark(
+    var(--mantine-color-yellow-1),
+    var(--mantine-color-yellow-9)
+  );
+  color: light-dark(
+    var(--mantine-color-yellow-9),
+    var(--mantine-color-yellow-1)
+  );
+}
+
+.healthUnknown {
+  background-color: light-dark(
+    var(--mantine-color-gray-1),
+    var(--mantine-color-gray-9)
+  );
+}
diff --git a/web/ui/mantine-ui/src/codebox.module.css b/web/ui/mantine-ui/src/codebox.module.css
index 23387c7764..d54a7d1b4f 100644
--- a/web/ui/mantine-ui/src/codebox.module.css
+++ b/web/ui/mantine-ui/src/codebox.module.css
@@ -4,42 +4,3 @@
     var(--mantine-color-gray-9)
   );
 }
-
-.statsBadge {
-  background-color: light-dark(
-    var(--mantine-color-gray-1),
-    var(--mantine-color-gray-9)
-  );
-  color: light-dark(var(--mantine-color-gray-7), var(--mantine-color-gray-5));
-}
-
-.labelBadge {
-  background-color: light-dark(
-    var(--mantine-color-gray-1),
-    var(--mantine-color-gray-9)
-  );
-  color: light-dark(var(--mantine-color-gray-7), var(--mantine-color-gray-5));
-}
-
-.healthOk {
-  background-color: light-dark(
-    var(--mantine-color-green-1),
-    var(--mantine-color-green-9)
-  );
-  color: light-dark(var(--mantine-color-green-9), var(--mantine-color-green-1));
-}
-
-.healthErr {
-  background-color: light-dark(
-    var(--mantine-color-red-1),
-    var(--mantine-color-red-9)
-  );
-  color: light-dark(var(--mantine-color-red-9), var(--mantine-color-red-1));
-}
-
-.healthUnknown {
-  background-color: light-dark(
-    var(--mantine-color-gray-1),
-    var(--mantine-color-gray-9)
-  );
-}
diff --git a/web/ui/mantine-ui/src/lib/time-format.ts b/web/ui/mantine-ui/src/lib/time-format.ts
index f31e574682..cfa5536319 100644
--- a/web/ui/mantine-ui/src/lib/time-format.ts
+++ b/web/ui/mantine-ui/src/lib/time-format.ts
@@ -109,10 +109,14 @@ export const humanizeDuration = (milliseconds: number): string => {
   return "0s";
 };
 
-export const formatRelative = (startStr: string, end: number): string => {
+export const formatRelative = (
+  startStr: string,
+  end: number,
+  suffix: string = " ago"
+): string => {
   const start = parseTime(startStr);
   if (start < 0) {
-    return "Never";
+    return "never";
   }
-  return humanizeDuration(end - start) + " ago";
+  return humanizeDuration(end - start) + suffix;
 };
diff --git a/web/ui/mantine-ui/src/pages/alerts.tsx b/web/ui/mantine-ui/src/pages/alerts.tsx
index e5514d254b..587d3cfe68 100644
--- a/web/ui/mantine-ui/src/pages/alerts.tsx
+++ b/web/ui/mantine-ui/src/pages/alerts.tsx
@@ -1,3 +1,187 @@
+import {
+  Card,
+  Group,
+  Table,
+  Text,
+  Accordion,
+  Badge,
+  Tooltip,
+  Box,
+  Switch,
+} from "@mantine/core";
+import { useSuspenseAPIQuery } from "../api/api";
+import { AlertingRulesMap } from "../api/response-types/rules";
+import badgeClasses from "../badge.module.css";
+import RuleDefinition from "../rule-definition";
+import { formatRelative, now } from "../lib/time-format";
+import { Fragment, useState } from "react";
+
 export default function Alerts() {
-  return <>Alerts page</>;
+  const { data } = useSuspenseAPIQuery<AlertingRulesMap>(`/rules?type=alert`);
+  const [showAnnotations, setShowAnnotations] = useState(false);
+
+  const ruleStatsCount = {
+    inactive: 0,
+    pending: 0,
+    firing: 0,
+  };
+
+  data.data.groups.forEach((el) =>
+    el.rules.forEach((r) => ruleStatsCount[r.state]++)
+  );
+
+  return (
+    <>
+      <Switch
+        checked={showAnnotations}
+        label="Show annotations"
+        onChange={(event) => setShowAnnotations(event.currentTarget.checked)}
+        mb="md"
+      />
+      {data.data.groups.map((g, i) => (
+        <Card
+          shadow="xs"
+          withBorder
+          radius="md"
+          p="md"
+          mb="md"
+          key={i} // TODO: Find a stable and definitely unique key.
+        >
+          <Group mb="md" mt="xs" ml="xs" justify="space-between">
+            <Group align="baseline">
+              <Text fz="xl" fw={600} c="var(--mantine-primary-color-filled)">
+                {g.name}
+              </Text>
+              <Text fz="sm" c="gray.6">
+                {g.file}
+              </Text>
+            </Group>
+          </Group>
+          <Accordion multiple variant="separated">
+            {g.rules.map((r, j) => {
+              const numFiring = r.alerts.filter(
+                (a) => a.state === "firing"
+              ).length;
+              const numPending = r.alerts.filter(
+                (a) => a.state === "pending"
+              ).length;
+
+              return (
+                <Accordion.Item key={j} value={j.toString()}>
+                  <Accordion.Control>
+                    <Group wrap="nowrap" justify="space-between" mr="lg">
+                      <Text>{r.name}</Text>
+                      <Group gap="xs">
+                        {numFiring > 0 && (
+                          <Badge className={badgeClasses.healthErr}>
+                            firing ({numFiring})
+                          </Badge>
+                        )}
+                        {numPending > 0 && (
+                          <Badge className={badgeClasses.healthWarn}>
+                            pending ({numPending})
+                          </Badge>
+                        )}
+                        {/* {numFiring === 0 && numPending === 0 && (
+                          <Badge className={badgeClasses.healthOk}>
+                            inactive
+                          </Badge>
+                        )} */}
+                      </Group>
+                    </Group>
+                  </Accordion.Control>
+                  <Accordion.Panel>
+                    <RuleDefinition rule={r} />
+                    {r.alerts.length > 0 && (
+                      <Table mt="lg">
+                        <Table.Thead>
+                          <Table.Tr>
+                            <Table.Th>Alert labels</Table.Th>
+                            <Table.Th>State</Table.Th>
+                            <Table.Th>Active Since</Table.Th>
+                            <Table.Th>Value</Table.Th>
+                          </Table.Tr>
+                        </Table.Thead>
+                        <Table.Tbody>
+                          {r.type === "alerting" &&
+                            r.alerts.map((a, k) => (
+                              <Fragment key={k}>
+                                <Table.Tr>
+                                  <Table.Td>
+                                    <Group gap="xs">
+                                      {Object.entries(a.labels).map(
+                                        ([k, v]) => {
+                                          return (
+                                            <Badge
+                                              variant="light"
+                                              className={
+                                                badgeClasses.labelBadge
+                                              }
+                                              styles={{
+                                                label: {
+                                                  textTransform: "none",
+                                                },
+                                              }}
+                                              key={k}
+                                            >
+                                              {/* TODO: Proper quote escaping */}
+                                              {k}="{v}"
+                                            </Badge>
+                                          );
+                                        }
+                                      )}
+                                    </Group>
+                                  </Table.Td>
+                                  <Table.Td>
+                                    <Badge
+                                      className={
+                                        a.state === "firing"
+                                          ? badgeClasses.healthErr
+                                          : badgeClasses.healthWarn
+                                      }
+                                    >
+                                      {a.state}
+                                    </Badge>
+                                  </Table.Td>
+                                  <Table.Td>
+                                    <Tooltip label={a.activeAt}>
+                                      <Box>
+                                        {formatRelative(a.activeAt, now(), "")}
+                                      </Box>
+                                    </Tooltip>
+                                  </Table.Td>
+                                  <Table.Td>{a.value}</Table.Td>
+                                </Table.Tr>
+                                {showAnnotations && (
+                                  <Table.Tr>
+                                    <Table.Td colSpan={4}>
+                                      <Table mt="md" mb="xl">
+                                        <Table.Tbody>
+                                          {Object.entries(a.annotations).map(
+                                            ([k, v]) => (
+                                              <Table.Tr key={k}>
+                                                <Table.Th>{k}</Table.Th>
+                                                <Table.Td>{v}</Table.Td>
+                                              </Table.Tr>
+                                            )
+                                          )}
+                                        </Table.Tbody>
+                                      </Table>
+                                    </Table.Td>
+                                  </Table.Tr>
+                                )}
+                              </Fragment>
+                            ))}
+                        </Table.Tbody>
+                      </Table>
+                    )}
+                  </Accordion.Panel>
+                </Accordion.Item>
+              );
+            })}
+          </Accordion>
+        </Card>
+      ))}
+    </>
+  );
 }
diff --git a/web/ui/mantine-ui/src/pages/rules.tsx b/web/ui/mantine-ui/src/pages/rules.tsx
index ab1e8a5075..0893dd0a2c 100644
--- a/web/ui/mantine-ui/src/pages/rules.tsx
+++ b/web/ui/mantine-ui/src/pages/rules.tsx
@@ -1,72 +1,45 @@
-import {
-  Alert,
-  Badge,
-  Card,
-  Group,
-  Table,
-  Text,
-  Tooltip,
-  useComputedColorScheme,
-} from "@mantine/core";
+import { Alert, Badge, Card, Group, Table, Text, Tooltip } from "@mantine/core";
 // import { useQuery } from "react-query";
-import {
-  formatDuration,
-  formatRelative,
-  humanizeDuration,
-  now,
-} from "../lib/time-format";
+import { formatRelative, humanizeDuration, now } from "../lib/time-format";
 import {
   IconAlertTriangle,
   IconBell,
-  IconClockPause,
-  IconClockPlay,
   IconDatabaseImport,
   IconHourglass,
   IconRefresh,
   IconRepeat,
 } from "@tabler/icons-react";
-import CodeMirror, { EditorView } from "@uiw/react-codemirror";
 import { useSuspenseAPIQuery } from "../api/api";
 import { RulesMap } from "../api/response-types/rules";
-import { syntaxHighlighting } from "@codemirror/language";
-import {
-  baseTheme,
-  darkPromqlHighlighter,
-  lightTheme,
-  promqlHighlighter,
-} from "../codemirror/theme";
-import { PromQLExtension } from "@prometheus-io/codemirror-promql";
-import classes from "../codebox.module.css";
+import badgeClasses from "../badge.module.css";
+import RuleDefinition from "../rule-definition";
 
 const healthBadgeClass = (state: string) => {
   switch (state) {
     case "ok":
-      return classes.healthOk;
+      return badgeClasses.healthOk;
     case "err":
-      return classes.healthErr;
+      return badgeClasses.healthErr;
     case "unknown":
-      return classes.healthUnknown;
+      return badgeClasses.healthUnknown;
     default:
       return "orange";
   }
 };
 
-const promqlExtension = new PromQLExtension();
-
 export default function Rules() {
   const { data } = useSuspenseAPIQuery<RulesMap>(`/rules`);
-  const theme = useComputedColorScheme();
 
   return (
     <>
-      {data.data.groups.map((g) => (
+      {data.data.groups.map((g, i) => (
         <Card
           shadow="xs"
           withBorder
           radius="md"
           p="md"
           mb="md"
-          key={g.name + ";" + g.file}
+          key={i} // TODO: Find a stable and definitely unique key.
         >
           <Group mb="md" mt="xs" ml="xs" justify="space-between">
             <Group align="baseline">
@@ -81,7 +54,7 @@ export default function Rules() {
               <Tooltip label="Last group evaluation" withArrow>
                 <Badge
                   variant="light"
-                  className={classes.statsBadge}
+                  className={badgeClasses.statsBadge}
                   styles={{ label: { textTransform: "none" } }}
                   leftSection={<IconRefresh size={12} />}
                 >
@@ -91,7 +64,7 @@ export default function Rules() {
               <Tooltip label="Duration of last group evaluation" withArrow>
                 <Badge
                   variant="light"
-                  className={classes.statsBadge}
+                  className={badgeClasses.statsBadge}
                   styles={{ label: { textTransform: "none" } }}
                   leftSection={<IconHourglass size={12} />}
                 >
@@ -101,7 +74,7 @@ export default function Rules() {
               <Tooltip label="Group evaluation interval" withArrow>
                 <Badge
                   variant="light"
-                  className={classes.statsBadge}
+                  className={badgeClasses.statsBadge}
                   styles={{ label: { textTransform: "none" } }}
                   leftSection={<IconRepeat size={12} />}
                 >
@@ -113,8 +86,9 @@ export default function Rules() {
           <Table>
             <Table.Tbody>
               {g.rules.map((r) => (
+                // TODO: Find a stable and definitely unique key.
                 <Table.Tr key={r.name}>
-                  <Table.Td p="md" valign="top">
+                  <Table.Td p="md" py="xl" valign="top">
                     <Group gap="xs" wrap="nowrap">
                       {r.type === "alerting" ? (
                         <IconBell size={14} />
@@ -134,7 +108,7 @@ export default function Rules() {
                         <Tooltip label="Last rule evaluation" withArrow>
                           <Badge
                             variant="light"
-                            className={classes.statsBadge}
+                            className={badgeClasses.statsBadge}
                             styles={{ label: { textTransform: "none" } }}
                             leftSection={<IconRefresh size={12} />}
                           >
@@ -148,7 +122,7 @@ export default function Rules() {
                         >
                           <Badge
                             variant="light"
-                            className={classes.statsBadge}
+                            className={badgeClasses.statsBadge}
                             styles={{ label: { textTransform: "none" } }}
                             leftSection={<IconHourglass size={12} />}
                           >
@@ -160,31 +134,8 @@ export default function Rules() {
                       </Group>
                     </Group>
                   </Table.Td>
-                  <Table.Td p="md">
-                    <Card
-                      p="xs"
-                      className={classes.codebox}
-                      radius="sm"
-                      shadow="none"
-                    >
-                      <CodeMirror
-                        basicSetup={false}
-                        value={r.query}
-                        editable={false}
-                        extensions={[
-                          baseTheme,
-                          lightTheme,
-                          syntaxHighlighting(
-                            theme === "light"
-                              ? promqlHighlighter
-                              : darkPromqlHighlighter
-                          ),
-                          promqlExtension.asExtension(),
-                          EditorView.lineWrapping,
-                        ]}
-                      />
-                    </Card>
-
+                  <Table.Td p="md" py="xl">
+                    <RuleDefinition rule={r} />
                     {r.lastError && (
                       <Alert
                         color="red"
@@ -195,56 +146,6 @@ export default function Rules() {
                         <strong>Error:</strong> {r.lastError}
                       </Alert>
                     )}
-                    {r.type === "alerting" && (
-                      <Group mt="md" gap="xs">
-                        {r.duration && (
-                          <Badge
-                            variant="light"
-                            styles={{ label: { textTransform: "none" } }}
-                            leftSection={<IconClockPause size={12} />}
-                          >
-                            for: {formatDuration(r.duration * 1000)}
-                          </Badge>
-                        )}
-                        {r.keepFiringFor && (
-                          <Badge
-                            variant="light"
-                            styles={{ label: { textTransform: "none" } }}
-                            leftSection={<IconClockPlay size={12} />}
-                          >
-                            keep_firing_for: {formatDuration(r.duration * 1000)}
-                          </Badge>
-                        )}
-                      </Group>
-                    )}
-                    {r.labels && Object.keys(r.labels).length > 0 && (
-                      <Group mt="md" gap="xs">
-                        {Object.entries(r.labels).map(([k, v]) => (
-                          <Badge
-                            variant="light"
-                            className={classes.labelBadge}
-                            styles={{ label: { textTransform: "none" } }}
-                            key={k}
-                          >
-                            {k}: {v}
-                          </Badge>
-                        ))}
-                      </Group>
-                    )}
-                    {/* {Object.keys(r.annotations).length > 0 && (
-                      <Group mt="md" gap="xs">
-                        {Object.entries(r.annotations).map(([k, v]) => (
-                          <Badge
-                            variant="light"
-                            color="orange.9"
-                            styles={{ label: { textTransform: "none" } }}
-                            key={k}
-                          >
-                            {k}: {v}
-                          </Badge>
-                        ))}
-                      </Group>
-                    )} */}
                   </Table.Td>
                 </Table.Tr>
               ))}
diff --git a/web/ui/mantine-ui/src/rule-definition.tsx b/web/ui/mantine-ui/src/rule-definition.tsx
new file mode 100644
index 0000000000..8f426fd82d
--- /dev/null
+++ b/web/ui/mantine-ui/src/rule-definition.tsx
@@ -0,0 +1,105 @@
+import {
+  Alert,
+  Badge,
+  Card,
+  Group,
+  useComputedColorScheme,
+} from "@mantine/core";
+import {
+  IconAlertTriangle,
+  IconClockPause,
+  IconClockPlay,
+} from "@tabler/icons-react";
+import { FC } from "react";
+import { formatDuration } from "./lib/time-format";
+import codeboxClasses from "./codebox.module.css";
+import badgeClasses from "./badge.module.css";
+import { Rule } from "./api/response-types/rules";
+import CodeMirror, { EditorView } from "@uiw/react-codemirror";
+import { syntaxHighlighting } from "@codemirror/language";
+import {
+  baseTheme,
+  darkPromqlHighlighter,
+  lightTheme,
+  promqlHighlighter,
+} from "./codemirror/theme";
+import { PromQLExtension } from "@prometheus-io/codemirror-promql";
+
+const promqlExtension = new PromQLExtension();
+
+const RuleDefinition: FC<{ rule: Rule }> = ({ rule }) => {
+  const theme = useComputedColorScheme();
+
+  return (
+    <>
+      <Card p="xs" className={codeboxClasses.codebox} radius="sm" shadow="none">
+        <CodeMirror
+          basicSetup={false}
+          value={rule.query}
+          editable={false}
+          extensions={[
+            baseTheme,
+            lightTheme,
+            syntaxHighlighting(
+              theme === "light" ? promqlHighlighter : darkPromqlHighlighter
+            ),
+            promqlExtension.asExtension(),
+            EditorView.lineWrapping,
+          ]}
+        />
+      </Card>
+      {rule.type === "alerting" && (
+        <Group mt="md" gap="xs">
+          {rule.duration && (
+            <Badge
+              variant="light"
+              styles={{ label: { textTransform: "none" } }}
+              leftSection={<IconClockPause size={12} />}
+            >
+              for: {formatDuration(rule.duration * 1000)}
+            </Badge>
+          )}
+          {rule.keepFiringFor && (
+            <Badge
+              variant="light"
+              styles={{ label: { textTransform: "none" } }}
+              leftSection={<IconClockPlay size={12} />}
+            >
+              keep_firing_for: {formatDuration(rule.duration * 1000)}
+            </Badge>
+          )}
+        </Group>
+      )}
+      {rule.labels && Object.keys(rule.labels).length > 0 && (
+        <Group mt="md" gap="xs">
+          {Object.entries(rule.labels).map(([k, v]) => (
+            <Badge
+              variant="light"
+              className={badgeClasses.labelBadge}
+              styles={{ label: { textTransform: "none" } }}
+              key={k}
+            >
+              {k}: {v}
+            </Badge>
+          ))}
+        </Group>
+      )}
+      {/* {Object.keys(r.annotations).length > 0 && (
+    <Group mt="md" gap="xs">
+      {Object.entries(r.annotations).map(([k, v]) => (
+        <Badge
+          variant="light"
+          color="orange.9"
+          styles={{ label: { textTransform: "none" } }}
+          key={k}
+        >
+          {k}: {v}
+        </Badge>
+      ))}
+    </Group>
+  )} */}
+    </>
+  );
+};
+
+export default RuleDefinition;