diff --git a/.github/workflows/cleanup.yml b/.github/workflows/cleanup.yml
index b458fb0489..e4280b3b4b 100644
--- a/.github/workflows/cleanup.yml
+++ b/.github/workflows/cleanup.yml
@@ -56,6 +56,7 @@ jobs:
 
             const workflows = [
               'cleanup.yml',
+              'close-duplicates.yml',
               'closed-issues.yml',
               'debug-info-actions.yml',
               'depsreview.yml',
diff --git a/.github/workflows/close-duplicates.yml b/.github/workflows/close-duplicates.yml
new file mode 100644
index 0000000000..df8f1a838b
--- /dev/null
+++ b/.github/workflows/close-duplicates.yml
@@ -0,0 +1,39 @@
+name: "Issues - Command to close duplicate issues"
+
+# the workflow to execute on is comments that are newly created
+on:
+  issue_comment:
+    types: [created]
+
+permissions:
+  issues: write
+  checks: read
+
+jobs:
+  close_duplicates:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: github/command@v1.1.0
+        id: command
+        with:
+          allowed_contexts: "issue"
+          command: ".duplicate"
+      - name: reply
+        if: ${{ steps.command.outputs.continue == 'true' }}
+        run: |
+          gh issue comment "$NUMBER" --body 'Hi there!
+
+          This is an automatic reply. `Share and enjoy`.
+
+          This issue is probably a duplicate of issue #${{ steps.command.outputs.params }}. This issue probably refers to the same bug or feature request as your issue.
+
+          Please refer to that issue for support.
+
+          Thank you for your contribution.'
+
+          gh issue close "$NUMBER" --reason completed
+          gh issue lock "$NUMBER"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          NUMBER: ${{ github.event.issue.number }}