Temperatures in the area are near 100 degrees and humidity as low as 15 percent. The southern part of California has seen very little rain, drying out vegetation and making it "ripe to burn," the National Weather Service (NWS) for Los Angeles warned.

Fire crews are working to contain a fast-moving brush fire in Ventura and Los Angeles counties that has led to evacuations on Thursday.

Canyon Fire becomes one of four wildfires burning across Southern California on Thursday, forcing evacuations east of Lake Piru as crews battle flames.