diff --git a/radicale/storage.py b/radicale/storage.py
index d14797f..b8cb7bb 100644
--- a/radicale/storage.py
+++ b/radicale/storage.py
@@ -580,7 +580,17 @@ class Collection(BaseCollection):
         if href is None:
             # Delete the collection
             if os.path.isdir(self._filesystem_path):
-                shutil.rmtree(self._filesystem_path)
+                parent_dir = os.path.dirname(self._filesystem_path)
+                try:
+                    os.rmdir(self._filesystem_path)
+                except OSError:
+                    with TemporaryDirectory(prefix=".Radicale.tmp-",
+                                            dir=parent_dir) as tmp_dir:
+                        os.rename(self._filesystem_path, os.path.join(
+                            tmp_dir, os.path.basename(self._filesystem_path)))
+                        sync_directory(parent_dir)
+                else:
+                    sync_directory(parent_dir)
         else:
             # Delete an item
             if not is_safe_filesystem_path_component(href):
@@ -593,6 +603,7 @@ class Collection(BaseCollection):
             if etag and etag != get_etag(text):
                 raise EtagMismatchError(etag, get_etag(text))
             os.remove(path)
+            sync_directory(os.path.dirname(path))
 
     def get_meta(self, key):
         if os.path.exists(self._props_path):
diff --git a/radicale/tests/test_base.py b/radicale/tests/test_base.py
index c08e864..6f763a0 100644
--- a/radicale/tests/test_base.py
+++ b/radicale/tests/test_base.py
@@ -163,6 +163,31 @@ class BaseRequests:
         assert status == 200
         assert "DAV" in headers
 
+    def test_delete_collection(self):
+        """Delete a collection."""
+        self.request("MKCOL", "/calendar.ics/")
+        event = get_file_content("event1.ics")
+        self.request("PUT", "/calendar.ics/event1.ics", event)
+        status, headers, answer = self.request("DELETE", "/calendar.ics/")
+        assert status == 200
+        assert "href>/calendar.ics/</" in answer
+        status, headers, answer = self.request("GET", "/calendar.ics/")
+        assert status == 404
+
+    def test_delete_root_collection(self):
+        """Delete the root collection."""
+        self.request("MKCOL", "/calendar.ics/")
+        event = get_file_content("event1.ics")
+        self.request("PUT", "/event1.ics", event)
+        self.request("PUT", "/calendar.ics/event1.ics", event)
+        status, headers, answer = self.request("DELETE", "/")
+        assert status == 200
+        assert "href>/</" in answer
+        status, headers, answer = self.request("GET", "/calendar.ics/")
+        assert status == 404
+        status, headers, answer = self.request("GET", "/event1.ics")
+        assert status == 404
+
     def test_multiple_events_with_same_uid(self):
         """Add two events with the same UID."""
         self.request("MKCOL", "/calendar.ics/")