Share and Follow
In the early hours of Tuesday, a fierce six-alarm fire erupted at a warehouse in California, leading to the arrest of an employee, according to reports from FOX 11.
Footage captured the dramatic scene as flames engulfed the roof of the Kimberly-Clark consumer goods warehouse in southern Ontario, California, sending thick smoke spiraling into the night sky.
Firefighters were dispatched to the site around 12:30 a.m., where they encountered the 1.2 million-square-foot facility already ablaze, with flames roaring through the rooftop upon their arrival, as detailed by KTLA.

The fire, which broke out at the Kimberly-Clark warehouse on April 7, 2026, is suspected to be a case of arson, prompting a robust firefighting response.
The San Bernardino County Fire Department reported that the Ontario Fire Department was leading the efforts to contain the blaze, which involved paper products, with support from several neighboring fire agencies. Additionally, police utilized drone technology to aid in managing the situation.
The warehouse contained paper products such as tissues and other consumer goods, helping the fire spread rapidly, FOX 11 reported.

Firefighters battle a massive six-alarm blaze at a Kimberly-Clark warehouse in Ontario, California, on April 7, 2026, after authorities said the fire was intentionally set. (KTTV)
By about 5 a.m., firefighters shifted to a defensive strategy, positioning ladder trucks around the building and dousing the structure from above as the hours-long fire continued to burn, KTLA reported.
About 20 employees were inside the warehouse when the fire broke out, but all escaped without injury, according to FOX 11.
Ontario Fire Department Deputy Chief Mike Wedell said that while the building’s internal sprinkler system was operational, the fire grew “exponentially very quickly,” forcing initial interior crews to retreat and adopt a defensive strategy, FOX 11 reported.
In an update Tuesday morning, the Ontario Fire Department said more than 140 firefighters responded to the blaze, which has been contained to the building as crews continue battling the fire in a defensive mode.
Authorities also warned that smoke and ash may impact air quality in the area, advising residents — especially children and seniors — to remain indoors and avoid the area if possible.

Firefighters battle a massive six-alarm blaze at a Kimberly-Clark warehouse in Ontario, California, on April 7, 2026, after authorities said the fire was intentionally set. (KTTV)
Fire officials said the incident is being investigated as an arson case and that one suspect is in custody, the outlet reported.
“At this point, we do have a subject of interest,” Ontario Fire Department Deputy Chief Mike Woodell told KTLA. “That individual has been brought into custody, arrested, and taken to the police department. The individual is awaiting questioning by Ontario Police Department detectives who are en route.”
Fox News Digital reached out to Ontario’s police and fire departments for comment.