Massive six-alarm blaze engulfs California warehouse, employee detained

A monolithic six-alarm blaze tore done a California warehouse aboriginal Tuesday and authorities said an worker is successful custody, FOX 11 reported.

Video from the country showed flames ripping done the extortion of the Kimberly-Clark user goods installation successful confederate Ontario, Calif., arsenic fume billowed into the acheronian sky.

Crews responded astir 12:30 a.m. to the astir 1.2 million-square-foot installation wherever flames were already tearing done the extortion erstwhile archetypal responders arrived, according to KTLA.

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A monolithic six-alarm occurrence engulfs a Kimberly-Clark warehouse successful Ontario, California, connected April 7, 2026, arsenic firefighters conflict the blaze successful a suspected arson case. (KTTV)

San Bernardino County Fire said the Ontario Fire Department was battling a six-alarm warehouse occurrence involving insubstantial products, with assistance from aggregate neighboring agencies. Police besides utilized drone footage to assistance operations.

The warehouse contained insubstantial products specified arsenic tissues and different user goods, helping the occurrence dispersed rapidly, FOX 11 reported.

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Firefighters conflict a monolithic six-alarm blaze astatine a Kimberly-Clark warehouse successful Ontario, California, connected April 7, 2026, aft authorities said the occurrence was intentionally set. (KTTV)

By astir 5 a.m., firefighters shifted to a antiaircraft strategy, positioning ladder trucks astir the gathering and dousing the operation from supra arsenic the hours-long occurrence continued to burn, KTLA reported.

About 20 employees were wrong the warehouse erstwhile the occurrence broke out, but each escaped without injury, according to FOX 11.

Ontario Fire Department Deputy Chief Mike Wedell said that portion the building’s interior sprinkler strategy was operational, the occurrence grew "exponentially precise quickly," forcing archetypal interior crews to retreat and follow a antiaircraft strategy, FOX 11 reported.

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Firefighters conflict a monolithic six-alarm blaze astatine a Kimberly-Clark warehouse successful Ontario, California, connected April 7, 2026, aft authorities said the occurrence was intentionally set. (KTTV)

Fire officials said the incidental is being investigated arsenic an arson lawsuit and that 1 fishy is successful custody, the outlet reported.

"At this point, we bash person a taxable of interest," Ontario Fire Department Deputy Chief Mike Woodell told KTLA. "That idiosyncratic has been brought into custody, arrested, and taken to the constabulary department. The idiosyncratic is awaiting questioning by Ontario Police Department detectives who are en route."

Fox News Digital reached retired to Ontario's constabulary and occurrence departments for comment.