An alert New Bedford convenience store clerk foiled an early morning armed robbery. The 28 year old male clerk at the Petro Mart on Coggeshall Street told police he saw a man heading towards the store with his face covered, carrying a knife.

The quick thinking clerk held the door shut and after a few minutes the frustrated robber escaped to a waiting dark colored Hyundai Elantra heading east on Coggeshall St.. The suspect is described as a heavy set white male about 5 6 who was wearing a T shirt over his head with eye holes cut out of it.

The clerk was unharmed and anyone with info is asked to call New Bedford Police Detectives at 508-991-6300 ext 148.