CASTAIC, Calif. (AP) — Firefighters fought to maintain the upper hand on a huge and rapidly moving wildfire that swept through rugged mountains north of Los Angeles and resulted in more than 50,000 people being put under evacuation orders or warnings.

Winds in the area were blowing at about 20-30mph (32-48km/h), but could pick up, which would fan the blaze and make it harder for air crews to operate. Climate change has made the grasses and shrubs that are fuelling the Los Angeles fires more vulnerable to burning, scientists have said.

Ash from the Los Angeles Palisades and Eaton fires has been found by ocean researchers up to 100 miles away in the Pacific near San Nicolas Island.