Ontario, California – Firefighters from the Ontario Fire Department, supported by multiple neighboring departments, battled a massive 6-alarm fire at a large industrial warehouse on April 6, 2026.

The warehouse, storing paper products, was engulfed in thick black smoke and towering flames as crews worked on the ground to suppress the blaze.

Video footage captured the intensity of the fire from street level, showing multiple fire engines and firefighters in action. Later drone footage from the Ontario Police Department revealed the full scale of the inferno from above.

Officials confirmed that units from many surrounding departments were assisting in the ongoing suppression efforts, as the fire continued to challenge crews throughout the day.

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