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

With high winds driving the flames, a fast-moving wildfire exploded to more than 10,000 acres near the Los Angeles County community of Castaic Wednesday, prompting mandatory evacuation orders for tens of thousands of people.

The blaze temporarily closed parts of Interstate 5 and prompted evacuation orders and warnings for more than 50,000 people.

The fire threat remains critical in Southern California, where thousands of residents were under evacuation orders Wednesday as fire crews battled the out-of-control Hughes Fire near Castaic, a suburb in the foothills and mountains of northern Los Angeles County.