Fire crews searched for hot spots Thursday in the aftermath of a 75-acre fire in the Angeles National Forest near Castaic, officials said.
The fire was 75 percent contained early Thursday morning, said Michael Pittman, a supervising fire dispatcher for the Los Angeles County Fire Department. He added that fire crews expect to have the fire fully contained later Thursday.
The blaze was reported at 4:49 p.m. Wednesday and grew to 25 acres within an hour, said Los Angeles County Fire Department Inspector Steve Zermeno.
Officials halted investigations into the cause of the fire at sundown, but resumed their efforts after daybreak, a dispatchers said.
About 300 firefighters from the Los Angeles County Fire Department, prison crews and the U.S. Forest Service fought the blaze, Zermeno said. The Los Angeles Fire Department contributed a helicopter to the effort.
Traffic on the northbound Golden State (5) Freeway was at a complete stop for a while, but later some motorists were being escorted through by the California Highway Patrol.
Authorities opened two lanes at 8 p.m. Wednesday. A third lane was reopened by about 6 a.m. today, leaving one northbound lane blocked, the CHP reported.