This is just part of this massive fire, but federal and state officials are going to announce that the fire that is burning in Santiago Canyon was set by arsonists:
CBS News has learned a task force of agencies, including the FBI, ATF, the Orange County Sheriff's Office and the California Department of Forestry will announce shortly that the massive Santiago Canyon Fire - which has caused an estimated $10 million in damage - is being officially declared an arson, and a $50,000 reward is being offered to find the arsonist.
Investigators have identified two separate "points of origin" where they believe the fire was set, CBS News has learned. FBI agents secured the scene to "maintain its integrity."
California authorities and FBI agents searched a home Wednesday as part of the arson investigation.
The search was conducted in Orange County by the Orange County Sheriff's Office and the FBI, the official said.
"FBI Los Angeles is assisting Orange County fire officials and sheriff's office in an ongoing investigation into the source of some of the fires," FBI spokesman Richard Kolko said. He referred all other questions to local authorities.
According to the report, the other fires were caused by downed power lines and a car fire. Hat tip to Drudge for the link.