diff --git a/.github/workflows/no-pr.yml b/.github/workflows/no-pr.yml
new file mode 100644
index 0000000..abd098a
--- /dev/null
+++ b/.github/workflows/no-pr.yml
@@ -0,0 +1,21 @@
+name: Close pull request
+
+on:
+  pull_request_target:
+    types:
+      - opened
+
+jobs:
+  close-pr:
+    permissions:
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - run: gh pr close "$NUMBER" --comment "$COMMENT"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          NUMBER: ${{ github.event.number }}
+          COMMENT: >
+            Thank you for submitting your pull request.
+            Please note that the main repository is located at https://git.naxdy.org/NaxdyOrg/NaxGCC-FW - please submit your pull request there if you would like it to be considered for merging.