RIVERSIDE (CBSLA.com) – A man was shot and killed in the parking lot of a strip mall in Riverside early Friday morning, authorities said, in what may have been a robbery.

According to Riverside police, the shooting was reported at around 4:30 a.m. in a lot at Magnolia Avenue and Tyler Street, in the area of the West Plaza Shopping Center. Officers arrived to find the victim in the driver’s seat of a running car that had backed into a tree. The victim died at the scene from gunshot wounds to his upper body.

Investigators believe the victim, a man in his late 20s, had withdrawn money from a Chase ATM and had returned to his car, where he was shot. His name was not released.

The crime is being investigated as a possible robbery, police said. Witnesses reported hearing gunshots and seeing two people running across the parking lot.

No arrests have been made and no suspect descriptions were immediately available. Anyone with information should call detectives at 951-353-7137.