Sri Lanka, Oct. 3 -- A fire broke out at Chevron's El Segundo refinery, one of the largest on the U.S. west coast, California Governor Gavin Newsom's press office said on Thursday, with a county official adding that the flames had been confined to one area.

The cause of the blaze was not clear, the Los Angeles Times said, while broadcaster CBS said officers and firefighters rushed to the refinery in Los Angeles county after reports of an explosion.

"Our office is coordinating with local and state agencies to ... ensure public safety," Newsom's press office said on X.

CBS cited police as saying they were not aware of any immediate injuries or evacuations, adding that Los Angeles county supervisor Holly Mitchell had said crews contained ...