Firefighters were battling a massive six-alarm blaze that investigators believe was intentionally set by a warehouse employee in San Bernardino County early Tuesday morning.
Multiple agencies responded around 12:30 a.m. to a fire reported at the approximately one-million-square-foot Kimberly-Clark warehouse near South Hellman Avenue and Merrill Avenue in Ontario.
Video from the scene showed flames ripping through the roof of the warehouse as first-arriving crews immediately called for a second-alarm response to bring in more firefighting resources…