Police are searching for a suspect in connection with a gunpoint robbery that happened just before 10 p.m. on Fairmount near 4th Street in Northern Liberties.

The suspect approached the victim, who has not been identified, with a sawed off shotgun and was last seen running south from the scene.

The man ran off with an iPhone and $900 in cash.

Police said the suspect is a black man who is 6-feet-3 inches tall and weighs about 250 pounds.

Officials said the man was wearing a black hooded sweat shirt, white sneakers and shorts that may have red stripes down the sides.