Around 10:45 pm Wednesday night, SDFD and CHP San Diego responded to reports of a motorcycle crash on westbound SR-94 just west of Kelton. Crews arrived to find a motorcycle and multiple vehicles involved, one vehicle on its roof. In an SOT with a witness, the motorcycle was actually moving across lanes without a rider on it! The occupant of the rolled over vehicle was transported to a local hospital with unknown injuries, The rider of the motorcycle, however, was never found. SDPD’s ABLE helicopter responded to the area but could not locate the rider. SR-94 was shut down for an extended period of time while crews searched for the victim and conducted their investigation. Shoes were found about 1/2 a mile east of the scene. Contact CHP for additional details.