diff --git a/correios/client.py b/correios/client.py
index e18169c..7526f4a 100644
--- a/correios/client.py
+++ b/correios/client.py
@@ -725,3 +725,13 @@ def calculate_delivery_time(
     def cancel_object(self, posting_card_number: Union[int, str], tracking_code: str):
         posting_card_number = str(posting_card_number)
         self._auth_call("cancelarObjeto", posting_card_number, tracking_code)
+
+    def block_object(self, posting_card_number: Union[int, str], tracking_code: str):
+        posting_card_number = str(posting_card_number)
+        self._auth_call(
+            "bloquearObjeto",
+            numeroEtiqueta=tracking_code,
+            idPlp=posting_card_number,
+            tipoBloqueio="FRAUDE_BLOQUEIO",
+            acao="DEVOLVIDO_AO_REMETENTE"
+        )