A manhunt is under way in City Heights.
The shooting occurred at 1:30 p.m. on 49th Street, just south of El Cajon Boulevard. According to investigators, a motorcycle officer on patrol heard two shots and rushed to help the victim, who was shot in the face.
Police said the teen is about 16 years old. Two shell casings were found in an alley, and a police dog is helping to search for evidence.
Officers said drugs or gangs may have played a part in the shooting.