The Hughes Fire in northern Los Angeles County near Santa Clarita has led to mandatory evacuation notices for Interstate 5.

Firefighters are responding to a brush fire in the Castaic area of Los Angeles County Wednesday morning, according to the Angeles National Forest.

LET’S GO TO L.A. COUNTY NOW, WHERE A FIRE HAS FORCED THOUSANDS OF PEOPLE TO EVACUATE AS CREWS HAVE RUSHED IN TO TRY TO PROTECT HOMES. THE FIRE STARTED YESTERDAY JUST EAST OF CASTAIC LAKE, AND THE WIND PUSHED THE FIRE WEST TOWARD HOMES AND BUSINESSES.

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.

Officials held a press conference Wednesday after a new wildfire broke out in northern Los Angeles County earlier in the day. The Hughes Fire has burned over 9,000 acres in L.A. and Ventura counties, forcing tens of thousands of evacuations.

A wildfire erupted near Castaic Lake Wednesday, sending plumes of smoke into neighboring Ventura County areas. Here's what to know.

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.