The suspect entered the convenience store at 3961 Callan Blvd. around 1 a.m., brandished a black handgun and stole cash from the register, police said. The clerk was not injured during the incident.
Police are searching for the suspect, described as a Hispanic man in his 20s, about 6 feet tall and approximately 200 pounds. He has a light complexion, a thin mustache and was wearing a black hooded sweatshirt, jeans and athletic shoes at the time of the robbery.
Anyone with information is encouraged to contact the South San Francisco Police Department at (650) 877-8900.