Officials determined Thursday that the 140,000-acre Station Fire was intentionally set by an arsonist.
Investigators said today the Station Fire, the largest fire ever in Los Angeles County history, has been ruled arson.
At an evening briefing, officials said they made the determination after a forensic examination of the origin of the fire.
Los Angeles County Sheriff’s department homicide bureau has initiated a homicide investigation, officials said.
Homicide was called because two firefighters died in the blaze.