The 7-Eleven convenience store on the Post Road in Southport was robbed by an armed man late Thursday, who fled with cash and cigarettes, police said.
The incident took place just before midnight at the store at 3233 Post Road.
Police said the robber showed a gun to the store clerk and demanded cash register receipts, and fled on foot with $125 and five packs of cigarettes.
The suspect is described as a black male, about 5 feet 5 inches tall and wearing a bright-blue hoodie and khaki pants.
The clerk was unharmed during the incident, police said.