GORHAM — Gorham police are investigating another robbery, the third reported since Thursday night.

Sunday night’s robbery took place at Domino’s Pizza, 633 Main St., according to Detective Sgt. Dana Thompson.

Thompson said the robberies appear to have been committed by the same person, who in each case escaped with a small amount of cash. To date, no one has been injured. The suspect displayed a gun in the first robbery and implied he had a weapon in the subsequent robberies.

“We would love any help we could get from the public before something tragic happens,” Thompson said.

The first robbery took place Thursday night at the U.S. Cellular Store, 102 Main St. On Saturday night, the Olympia Sports store, 108 Main St., was robbed. All three robberies have taken place between 6:30 p.m. and 9 p.m.

Thompson described the suspect as a white male, about 5 feet 9 inches tall with brown eyes and brown hair.

Anyone with information about the crimes should contact Gorham police at 222-1660.