Official reports say 13 people were killed in southern California, US after a tour bus ran into the back of a lorry.
The crash which occurred on Interstate 10, near Palm Springs on Sunday, also left 30 people with various degrees of injury. Five of the injured passengers are reportedly in critical condition.
Most of the passengers are believed to be from Latin America and were on their way to Los Angeles.
Officials say they are investigating what may have caused the crash. One of the theories they are working with is whether the truck driver had fallen asleep or had a heart attack before the bus veered into the rear of the lorry.
They are also looking to see if it could have been caused by some sort of mechanical failure.
The lorry involved in the accident damaged extensively and clear-up operations have started at the crash site.
The crash has been called the ‘deadliest’ in California for many decades as officials say identifying victims of the accident could take a couple of days.