A large fire broke out at the Phillips 66 oil refinery in Carson on Friday evening.
The fire was first reported about 7:20 p.m. at the refinery on Sepulveda Boulevard, just west of Alameda Street.
Authorities shut down Sepulveda Boulevard between Alameda Street and Wilmington Avenue as firefighters continued dumping water on the flames Friday night, sheriff's officials said.
At least three pumps at the facility were involved in the fire, authorities said.
The flames were declared out about 9:30 p.m., according to Los Angeles County Fire Department Capt. Tony Imbrenda.
Private refinery firefighters, Los Angeles County firefighters and the Long Beach Fire Department joined in the effort, officials said.
Experts were monitoring the air quality, but Los Angeles County Sheriff's Department officials said there were no signs of a hazard.