Amid an extended red flag warning, the Hughes fire exploded north of Castaic on Wednesday and quickly grew to more than 9,400 acres. About 31,000 people in areas surrounding the fire were under evacuation orders.

Forward progress of the Sepulveda Fire that erupted quickly overnight off the 405 freeway near Getty Center in Los Angeles was contained at 45 acres early Thursday morning. Evacuation orders for that one were lifted.

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

The Hughes Fire has spread over 8,096 acres after starting just before lunchtime in Los Angeles County's Castaic Lake area on Wednesday.

The fast-burning Hughes Fire prompted evacuations on Wednesday morning after it was reporting burning near Castaic Lake in Los Angeles County. (Source: KTTV)