A passenger injured in a head-on collision on State Route 78 ran from the scene, officials said.
At least two people were hospitalized Friday after three cars collided on SR-78, east of San Pasqual State Historic Park.
Four people were in the vehicles but officials say one passenger who suffered an injury to his hand left the scene.
California Highway Patrol officers will investigate the cause of the crash.
“If you drive this stretch of road please be safe and wear your seatbelts,” said Battalion Chief David Pilkerton with the San Diego Fire-Rescue Department.
