The wildfire burning on the northern edge of Los Angeles has grown to more than 11 square miles but there is also some containment.
Officials say the fire is 13% surrounded Friday afternoon.
Authorities have not updated the initial tally of 25 homes damaged. Fire Capt. Branden Silverman says damage assessments are continuing.
Travel through the area remains difficult. The California Highway Patrol says sections of two interstates and one state highway remain closed.
Los Angeles authorities say about 100,000 people have been ordered to evacuate their homes because of a wildfire on the northern edge of the city in the San Fernando Valley area.
Authorities say the wind-driven wildfire burning along the northern tier of the city has damaged at least 25 homes and that 23,000 residences are under evacuation orders.
Police Chief Michel Moore says the evacuation encompasses about 100,000 people.
Cal Fire spokeswoman Cathey Mattingly says a person was killed in a fire that swept through a mobile home park Thursday in Riverside County east of Los Angeles. Mattingly says there were also some injuries but she does not know the number or severity.
Another man died of cardiac arrest but he did not have any details of the circumstances.
Schools and colleges in the area are closed and key freeways are shut down.
Water dropping helicopters that worked through the night have been bolstered by firefighting airplanes since daybreak.
Los Angeles arson investigators say a witness reported seeing sparks or flames coming from a power line near where a wildfire is believed to have started.
Peter Sanders, a spokesman for the Los Angeles Fire Department, says investigators are seeking additional witnesses.
At least two people told LA TV stations that they had seen fire near power lines.
Southern California Edison says it owns the transmission tower that was shown on KABC-TV.
A spokeswoman for the utility says it could take a long time to determine the cause of the fire.