As the sun began to set over Castaic Lake on Wednesday, the hills to the north and east were engulfed in flames, casting an eerie orange glow across the valley below.

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.

A large brush fire that erupted near Interstate 5 in Castaic has burned more than 10,000 acres, causing several evacuation orders and warnings Wednesday morning