Firefighters battling a fast-moving Southern California blaze say it has nearly tripled in size in a matter of hours.
The wildfire burning through coastal wilderness has now grown to more than 43 square miles, says Ventura County fire spokesman Bill Nash.
He says the 28,000-acre fire is burning new fuel in mostly unpopulated canyons, and is 20% contained.
Parts of the Newbury Park community of Thousand Oaks are under mandatory and voluntary evacuations.
The wind-whipped fire erupted on Thursday in the Camarillo area, threatening as many as 4,000 homes but only damaging 15.
After burning to the Pacific Ocean, a shift in winds caused the flames to reverse course and burn inland.
No injuries have been reported.