California fires have triggered evacuation orders and warnings. See latest on size and containment.

A fast-moving wildfire near Simi Valley continues to spread under gusty winds as firefighters race to increase containment.

As the Sandy fire burns through Ventura County, firefighters are desperate to keep the blaze away from the defunct Santa Susana Field Laboratory.

Three wildfires have burned more than 3,500 acres this week in Southern California and triggered evacuation orders and warnings for tens of thousands of residents in Ventura and Riverside counties. The fires blanketed widespread parts of the region with smoke,

Firefighters are working diligently to extinguish the Sandy Fire, which has forced the evacuation of tens of thousands of Simi Valley residents. As of 7 a.m. Wednesday morning, the fire stood at 1,698 acres and was 15% contained,

Fire season has hit the Los Angeles area as multiple wildfires erupt, including the Sandy Fire near Simi Valley, which has forced 43,000 people to evacuate.

One structure has been destroyed by the fire, officials said. Nearly 900 firefighters were on hand battling the blaze.

A wave of wildfires over the past few days has stretched fire crews across several counties as the flames destroy structures and drive thousands of residents to evacuate. In Simi Valley, tens of thousands remain evacuated as firefighters work to make progress on the Sandy Fire,