diff --git a/.github/changelog/1515-from-description b/.github/changelog/1515-from-description
new file mode 100644
index 000000000..30233c6b2
--- /dev/null
+++ b/.github/changelog/1515-from-description
@@ -0,0 +1,4 @@
+Significance: minor
+Type: added
+
+Incoming comments create an Announce activity so other instances get notified about it.
diff --git a/includes/handler/class-create.php b/includes/handler/class-create.php
index 6a33eb753..6017cf20f 100644
--- a/includes/handler/class-create.php
+++ b/includes/handler/class-create.php
@@ -9,6 +9,7 @@
 
 use Activitypub\Collection\Interactions;
 
+use function Activitypub\add_to_outbox;
 use function Activitypub\is_self_ping;
 use function Activitypub\is_activity_reply;
 use function Activitypub\is_activity_public;
@@ -79,6 +80,9 @@ public static function handle_create( $activity, $user_id, $activity_object = nu
 			$reaction = \get_comment( $state );
 		}
 
+		/* @ticket https://github.com/Automattic/wordpress-activitypub/issues/1001 */
+		add_to_outbox( $activity, 'Announce', $user_id, ACTIVITYPUB_CONTENT_VISIBILITY_PUBLIC );
+
 		/**
 		 * Fires after a Create activity has been handled.
 		 *