Ariel view of a fire at the Kimberly Clark paper products facility in Ontario. A massive fire burning inside a Kimberly Clark paper products facility in Ontario collapsed a warehouse roof and forced firefighters to retreat early Tuesday as flames consumed the 1.2-million square foot structure. The flames grew “exponentially” and quickly overwhelmed firefighters who rushed in to extinguish the blaze, forcing them to retreat, Wedell said. AdvertisementFirefighters battle a massive six-alarm blaze that investigators believe was intentionally set in Ontario on April 7, 2026. Advertisement“We would expect to be here on scene for the rest of the day for sure,” Wedell told KTTV.

Source: Los Angeles Times April 07, 2026 17:12 UTC