A robber who held up the Radio Shack store on Post Road East just before closing Friday night remains at large.

The suspect fled with an undetermined amount of cash from the electronics store at 877 Post Road East after confronting the clerk and demanding money shortly before the store was set to close at 9 p.m.

The man indicated he had a gun in a pocket, however, did not show a weapon.

After being given money from the register, the man fled on foot. A search by police patrols, assisted by a K-9 unit, failed to determine his escape route.

The suspect is described as a thin black male, with light to medium skin tone, about 5 feet, 7 inches tall. Police said he was wearing blue jeans and a fleece zip-up jacket and a black skull cap. He also has severe acne on his face, according to the description provided to police.

Anyone with information about the incident is asked to call the Westport Police Department at 203-341-6000 or the Detective Bureau directly at 203-341-6082.