Los Angeles wildfire death toll rises to 24

Firefighters raced to contain the frontiers of two Los Angeles wildfires that burned for the sixth straight day on Sunday, taking advantage of a brief respite in hazardous conditions before high winds were expected to fan the flames again.

At least 24 people have died in what California Governor Gavin Newsom said could be the most devastating natural disaster in US history, one that has destroyed thousands of homes and forced 100,000 people to evacuate.

Flames have reduced whole neighbourhoods to smoldering ruins, leveling the homes of the rich and famous and ordinary folk alike, and leaving an apocalyptic landscape. Officials said at least 12,300 structures have been damaged or destroyed.

"LA County had another night of unimaginable terror and heartbreak," Los Angeles County Supervisor Lindsey Horvath said.

Aerial firefighters, some of them scooping water out of the Pacific Ocean, dropped water and retardant while land crews with hand tools and hoses held the line of the Palisades Fire as it encroached on the upscale Brentwood section and other populated areas of Los Angeles.

That fire on the western side of town has consumed 96 sq km and stood at 13 per cent contained, a figure representing the percentage of the fire's perimeter that firefighters have under control.

The Eaton Fire in the foothills east of Los Angeles scorched another 57 sq km - itself nearly the size of Manhattan - and firefighters increased the containment to 27 per cent, up from 15 per cent a day earlier.

North of the city, the Hurst Fire was 89 per cent contained, and three other fires that had ravaged other parts of the county were now 100 per cent contained, the California Department of Forestry and Fire Protection (Cal Fire) reported, though areas within the containment lines may still be burning.