A new wildfire that erupted in northern Los Angeles County triggered tens of thousands of evacuation orders and warnings.

Firefighters in Southern California are once again battling a wildfire, this time in Castaic in Los Angeles County, north of Los Angeles itself. Evacuation orders have been issued for the surrounding areas.

Dozens of people are believed to have died in the Palisades and Eaton fires, which have burned down whole swaths of communities

A brush fire erupted amid powerful winds Wednesday afternoon in the Castaic area in the northern region of Los Angeles County, spreading quickly to 10,176 acres near the freeway, officials said.

"A strong Santa Ana Wind event is expected to develop Monday and last through at least Tuesday," the National Weather Service said.

As winds across the Southern California area are calmer than their peak and firefighters are making progress, the threat to the fire-weary region remains with Santa Ana winds expected to continue in the coming days.

Forward progress of the Sepulveda Fire that erupted quickly overnight off the 405 freeway near Getty Center in Los Angeles was contained at 45 acres early Thursday morning. Evacuation orders for that one were lifted.

The National Weather Service has issued another rare Particularly Dangerous Situation warning in anticipation of Monday's Santa Ana wind event.

More than 10,000 acres burn near Los Angeles as forecasters warn about more threats - Los Angeles County’s latest major wildfires tear over more than 10,000 acres as strong Santa Ana winds fan the fla

Exhausted firefighters battling deadly infernos for weeks are now grappling with two new wildfires torching Southern California.