Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Firefighters Make Slow Progress in Containing California Wildfires VOA News Firefighters have made progress containing wind-driven wildfires in the western U.S. state of California that has claimed one life, destroyed or damaged dozens of structures, and forced the evacuation of tens of thousands of people. Los Angeles Fire Department Captain Branden Silverman said Saturday morning the blaze in Los Angeles County, named the Saddleridge fire, had been 19-percent contained overnight, thanks to slightly cooler temperatures and lighter winds. The blaze damaged or destroyed at least 31 structures, including homes. The fire, located in the San Fernando Valley in Northwestern Los Angeles County, was only 13-percent contained on Friday, after burning more than 3,000 hectares, officials said. Authorities ordered mandatory evacuations Saturday of some 23,000 homes in an area covering about 100,000 residents. The cause of the Saddleridge fire has not been determined, but investigators said they were following up on a report of flames from a power line when the fire started Thursday night. To the east of the Saddleridge fire, another blaze swept through a Riverside County mobile home park, destroying dozens of homes. Authorities said that fire, which has burned about 330 hectares, had been 25 percent contained Saturday. .