A fast-moving wildfire exploded to roughly 10,200 acres near the Los Angeles County community of Castaic Wednesday morning, prompting mandatory evacuation orders and road closures, authorities said.

The Hughes Fire in Castaic area has burned more than 9,400 acres in just hours. While Los Angeles County Fire Chief Anthony Marrone called it a "difficult fire," he said that crews are "getting the upper hand on containing the blaze.