Dozens of passengers have been injured after a Southern California commuter train collided with a truck.
Three cars on the Metrolink train derailed and overturned after the collision just before 6am local time.
Fire and rescue crews converged on the crash site in Ventura County, about 65 miles (104km) northwest of Los Angeles.
At least 51 people were treated, with 28 of those transported to hospital, officials said.
The severity of the injuries was not immediately released.
Aerial footage from local television stations showed paramedics treating passengers on tarps that had been laid out on a nearby road.
Oxnard police Sergeant Denise Shadinger said the struck vehicle was engulfed in flames when first responders arrived.
The train was bound for Los Angeles from Ventura County, according to Metrolink's website.
