Nearly 200,000 residents have now been evacuated due to California wildfires as crews pivot to fight a new blaze, BBC reports.
Some 5,000 firefighters have been battling four brushfires that have destroyed hundreds of homes in the south of the state.
The number of evacuees nearly quadrupled on Thursday as a fifth fire broke out north of San Diego.
One death has been reported so far - a woman's body was found in a burned-out area in Ventura County.
But an official told the Ventura Country Star newspaper that the death in the town of Ojai may have been a car crash and it's unclear if it was fire-related.
By Thursday afternoon local time, California's fire service said the blaze had forced the evacuation of 189,000 residents.
The newest blaze, the Lilac fire, has scorched at least 2,500 acres (1,000 hectares), the state fire authority said on Twitter.
California Governor Jerry Brown has declared a state of emergency in the area.
A Reuters news agency photographer at the scene described seeing propane tanks under houses explode like bombs.
The White House said it was in contact with Californian authorities and ready to offer whatever help is needed.