Speculation about the cause of Los Angeles' devastating fires is rampant. The official investigations are now underway.

Los Angeles police said "a male was heard stating a suspect was trying 'to light a fire' near the Kenneth Fire". The ...

As blazes continue to devastate huge areas of Los Angeles county, a number of celebrities have questioned the source.

A man has been arrested on suspicion of arson in the Woodland Hills area of Los Angeles, near the Kenneth Fire currently ...

Gloria Lynn Mandich, 60, was arrested and now faces a felony charge of arson for allegedly starting a brush fire in Los ...

After another Los Angeles wildfire started on Thursday, a suspected arsonist with a blowtorch was detained by police officers ...

Police have detained a suspect allegedly responsible for starting one of the fires raging in Los Angeles. The suspect is a ...

Firefighters have partly or mostly contained four remaining wildfires in the Los Angeles area as of Saturday while more than ...

A law enforcement task force has been set up to uncover what caused the fires. The local agencies involved — the Los Angeles ...

A homeless man zip-tied by concerned citizens after he was seen lighting fires on a Los Angeles street with a torch has yet ...

While lightning is the most common source of fires in the U.S., according to the National Fire Protection Association, ...

As the Los Angeles wildfires continue to consume parts of Southern California, leaving homes destroyed ... Authorities have deployed arson investigators to the Pacific Palisades to determine ...