SAN DIEGO (CNS) - A gunman robbed a Chevron and got away with an undisclosed sum, police said Saturday.

The holdup at 7070 Clairemont Mesa Blvd occurred about 10:20 p.m. Friday, San Diego police Sgt. Todd Sluss said.

The robber, who had a black semiautomatic pistol, was black, about 5 feet 10 inches and believed to be in his 20s; he was wearing a red sweatshirt, black basketball shorts and black shoes, Sluss said.

Anyone with more information as to the name or whereabouts of the robber was asked to call Crimestoppers at (888) 540-8477.