Los Angeles County firefighters are working to extinguish a brush fire that is threatening buildings in Acton. The Hawk Fire started at about 3 p.m. and quickly grew to 50 acres, according to Cal Fire.

First discovered: 11:49 p.m. Aug. 11 Initial location: Los Angeles County, Calif. A new wildfire was reported today at 11:49 p.m. in Los Angeles County, California. Rock Fire has been burning on private land. At this time, there is no data on the containment status of the fire and the cause has yet to be determined.

Firefighters with air support are scrambling to control a fast-moving wildfire that erupted in hills along Interstate 5 in northwestern Los Angeles County

The Canyon Fire, which has torched about 5,370 acres around the border between Ventura and Los Angeles counties, is close to complete containment after firefighters made significant progress on the blaze overnight, according to authorities.

The Canyon Fire in Southern California has spread to more than 5,300 acres and was 25% contained, a day after igniting outside of Piru, CA.

Los Angeles introduces a sustainable rebuilding pilot program offering incentives for greener homes post-wildfires.

L.A. County Supervisor Lindsey Horvath, who represents Pacific Palisades and Malibu, made a commitment of $10 million for the project.