A big rig crossed the center divider on the 210 Freeway in Irwindale on Saturday morning, killing one and injuring 30, authorities said.
The mass accident took place before 9 a.m. west of Irwindale Avenue, where emergency personnel arrived to find the truck had collided with several vehicles, the Los Angeles County Fire Department said in a social media post.
One person was pronounced dead at the scene and two were critically injured. Eight minors were taken to the hospital and 22 other crash victims declined treatment, the department said.
The California Highway Patrol temporarily shut down all westbound lanes of the freeway, diverting traffic onto Irwindale Avenue, before opening up one lane.
The CHP issued a SigAlert warning of traffic delays on the westbound lanes, with two lanes on the eastbound side of the freeway also temporarily closed.
The cause of the crash is under investigation.
