But he also took to Twitter to criticise forest management in the state as "poor", threatening to revoke federal funding for California forest management unless action was taken to prevent future fires. He blamed the fires - still burning in both Northern and Souther California - on "gross mismanagement of the forests".
In Ventura County, most of the town of Thousand Oaks was ordered evacuated, adding to the anguish days after a gunman killed 12 people in a shooting rampage at a bar.
The comments were Trump's first about massive wildfires, including a blaze that incinerated most of the Northern California town of Paradise and killed at least nine people.
"This event was the worst-case scenario".
Butte County Sheriff's Office spokeswoman Megan McMann said Friday she did not have details on the circumstances of the death. "Regrettably, not everybody made it out".
The remains of five of the victims were discovered in or near burned out cars, three outside residences and one inside a home, Honea said. There also were reports of flames ripping through an apartment building and a mobile home park, along with people calling authorities to say they were trapped in burning structures.
The authorities have issued mandatory and voluntary evacuation orders for Los Angeles's West Hills area.
More than 200,000 people have fled in Ventura County and Malibu due to the Woolsey Fire, officials said.
So far, all nine fatalities were reported in the town of Paradise, in Butte County, where more than 6,700 buildings - a lot of them residences - have been consumed by the late-season inferno, which is now California's most destructive fire on record.More news: #Watch: Deepika and Ranveer cover their faces as they leave wedding venue
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Across the state, more than 250,000 people were forced to evacuate their homes in a dramatic scene, which saw some flee from their cars on foot to escape the flames.
"We never heard from them again", Lee said.
The fire is being driven west by 35 miles per hour (56 km/h) winds, fire officials said.
Fanned by strong winds, it has so far scorched 100,000 acres (40,500 hectares) and is 20 percent contained, the California Department of Forestry and Fire Protection (Cal Fire) said Saturday.
NASA The photo taken by NASA on Thursday shows the Camp fire burning through Paradise, California.
- Arizona is sending almost 150 firefighters and over 40 fire engines from communities all over the state to help California battle major wildfires. "They had us in like a caravan", Napoli said.
"There was really no firefight involved", McLean said, explaining that crews gave up on attacking the flames and instead helped people evacuate.
It easily jumped eight-lane Highway 101 and rambled over the Santa Monica Mountains to posh Malibu, where it torched homes and cars.
Experts say the forests now burning have up to 25 times the density of healthy forests, adding to fire risks.