Zanesville police are investigating another armed robbery. It happened this morning around 2:45 at the Starfire Gas Station at 727 Pershing road. Detectives say a man entered the store and demanded money. The suspect led clerks to believe that he had a gun. The suspect is described as a white male, 5 feet 7 inches tall, around 145 pounds. He was wearing a black headcover, white shirt and white painter pants. He fled the scene on foot. No injuries were reported. This is the 5th armed robbery in our area in the past four months.