Three wildfires have burned thousands acres this week in Southern California and triggered evacuation orders and warnings for tens of thousands of residents in Ventura and Riverside counties.

Crews are continuing to battle a brush fire dubbed the Sandy Fire burning in Simi Valley, which has grown to more than 1,300 acres on Tuesday morning.

The Ventura County Fire Department said approximately 900 firefighters were guarding homes from the blaze by Wednesday morning, with the fire measuring 1,698 acres in size.