It’s unclear how many homes have been destroyed by the Mountain Fire. Officials said they plan to send out damage assessment support teams who will be going door-to-door in the communities impacted by the fire.

On Wednesday, the National Weather Service issued a rare red flag warning for Los Angeles and Ventura Counties alerting of "extreme fire risk."

Firefighters are battling two fast-growing wildfires in Southern California Wednesday as the state experiences a “particularly dangerous” fire weather event.