The Quail Fire scorched 50 acres of brush in Castaic on Wednesday, and crews were working to fully extinguish the blaze.
The fire was reported about 5:50 p.m. to be burning in about three acres of brush near the northbound side of the Golden State (5) Freeway, south of Lake Hughes Road, according to the Los Angeles County Fire Department.
The Los Angeles County Animal Care and Control Center in the area and several other structures were initially threatened by the flames, but ground and air crews managed to prevent damage as the brush fire grew more than 40 acres by about 6:50 p.m.
The LA County Fire Department reported about just before 7:20 p.m. that progress of the fire had been stopped, and Cal Fire reported the fire had burned 50 acres.
Firefighters in the area were set to remain on the scene throughout the night to douse remaining hot spots. Containment of the Quail Fire was at 0% as of 7:50 p.m, according to Cal Fire.