SAN DIEGO — A driver who pulled over to change his tire on a major highway in the National City area died Thursday after being hit by a car, authorities said.

The incident happened around 5:50 p.m. on eastbound State Route 54, east of Highland Avenue, when the driver of a blue Toyota Scion parked in the center median after his car became disabled, California Highway Patrol stated in a press release Thursday. As the man was changing the tire, he was struck by a driver of a Mazda sedan.

The victim was transported to a local hospital, where he succumbed to his injuries, CHP confirmed.

“The driver of the Mazda remained on scene and cooperated with investigators,” CHP spokesperson Salvador Castro said. “Alcohol and or/drugs are not believed to be a factor in the collision.”

Three left eastbound lanes on SR-54 were closed due to the traffic collision but have since reopened, according to Caltrans San Diego.

Officers are investigating the cause of the crash.

CHP did not release the name of the deceased pending notification of the family.