Massive six-alarm blaze engulfs California warehouse, employee detained

A six-alarm inferno ripped through a California warehouse early Tuesday morning, with authorities taking an employee into custody, as reported by FOX 11.

Videos captured at the scene depicted flames engulfing the roof of the Kimberly-Clark consumer goods facility in southern Ontario, California, while plumes of smoke filled the night sky.

Emergency crews were dispatched around 12:30 a.m. to the sprawling 1.2 million-square-foot warehouse. Upon arrival, they found the roof already ablaze, according to KTLA.

Aerial nighttime image of a large warehouse fully engulfed in flames with thick smoke rising over an industrial area.

The dramatic scene unfolded as a six-alarm fire consumed the Kimberly-Clark warehouse in Ontario, California, on April 7, 2026, with firefighters tackling what is believed to be an arson-induced blaze. (KTTV)

The San Bernardino County Fire Department confirmed that the Ontario Fire Department was leading efforts to contain the six-alarm fire, which involved paper products, with support from several nearby agencies. Police deployed drones to provide aerial support for the operation.

The warehouse, filled with paper products like tissues and other consumer items, contributed to the rapid spread of the fire, FOX 11 noted.

Aerial daytime image of a large warehouse on fire with flames and heavy smoke, as firefighters respond from the ground.

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.

Aerial view of a large warehouse fire with flames and thick smoke rising over an industrial building in Ontario, California.

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.

-->

You May Also Like

Cheltenham High Football Hazing: 6 Players, 4 Coaches Charged - Internewscast Journal

Cheltenham High Football Hazing: 6 Players, 4 Coaches Charged

CHELTENHAM, Pa. — Ten people are facing criminal charges tied to an…
Freedom Scholarships Could Reach 52M Students, 2.5M in NY - Internewscast Journal

Freedom Scholarships Could Reach 52M Students, 2.5M in NY

Nearly 52 million students attending public, private and charter schools across the…
Anti-ICE Protester Accused of Attacking Police Faces Federal Court - Internewscast Journal

Anti-ICE Protester Accused of Attacking Police Faces Federal Court

A Los Angeles man accused of joining a violent clash during last…
ICE World Cup Crackdown: 900 Trafficking Arrests, 180 Rescued - Internewscast Journal

ICE World Cup Crackdown: 900 Trafficking Arrests, 180 Rescued

Federal authorities arrested 905 suspected human traffickers and rescued 180 victims, including…
Driver Leads Terrifying High-Speed Police Chase Across Los Angeles - Internewscast Journal

Driver Leads Terrifying High-Speed Police Chase Across Los Angeles

A high-speed police chase across Los Angeles ended Tuesday evening with several…
Ozzy Osbourne’s Iconic Haunted House Returns to Universal Studios - Internewscast Journal

Ozzy Osbourne’s Iconic Haunted House Returns to Universal Studios

The “Prince of Darkness” is returning in fitting fashion — this time…
Mamdani's Pied-a-Terre Tax Puts NYC Business Leaders on Edge - Internewscast Journal

Mamdani’s Pied-a-Terre Tax Puts NYC Business Leaders on Edge

New York City’s business community has shown little appetite for an open…
Ohio Camper Found Shot Dead on Puerto Rico Beach in Reported Execution-Style Killing - Internewscast Journal

Ohio Camper Found Shot Dead on Puerto Rico Beach in Reported Execution-Style Killing

A camping trip in Puerto Rico turned deadly for an Ohio man…
Sudan’s Forgotten War Leaves Millions Hungry and Ignored - Internewscast Journal

Sudan’s Forgotten War Leaves Millions Hungry and Ignored

As global attention is pulled toward flashpoints from Iran to Russia’s war…
WWII Veteran Identified 52 Years After Oregon Woods Murder - Internewscast Journal

WWII Veteran Identified 52 Years After Oregon Woods Murder

More than half a century after human bones were found in a…
Boeing Reels as Air Force One Costs Soar to $3 Billion - Internewscast Journal

Boeing Reels as Air Force One Costs Soar to $3 Billion

Boeing disclosed Tuesday on its earnings call that it has absorbed another…
Seattle Police Chief Clashes With Reporter as Scrutiny Grows Over Absence After Mass Shooting - Internewscast Journal

Seattle Police Chief Clashes With Reporter as Scrutiny Grows Over Absence After Mass Shooting

Seattle Police Chief Shon Barnes is facing renewed questions after he was…