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.

Firefighters on the ground and in the air rushed to slow a rapidly spreading brush fire that exploded near Castaic on Wednesday, forcing tens of thousands of evacuations and impacting traffic on the 5 Freeway.

By David Swanson CASTAIC, California (Reuters) -A rapidly growing wildfire broke out some 50 miles (80 km) north of Los Angeles on Wednesday, burning 5,054 acres (20 square km) while two major fires burning in the metropolitan area for more than two weeks were getting under control,