10 firefighters injured in early morning New Jersey house fire

David Matthews, New York Daily News on Oct 21, 2025

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Ten firefighters were injured battling a house fire early Tuesday morning in northeast New Jersey.

The blaze erupted at a residence in Hillsdale in Bergen County around 3:30 a.m., according to the Hillsdale Fire Department.

Crews, responding to reports of a roof on fire, arrived to find a rear deck fire that had extended up to the attic.

At one point, the water supply was lost and a flashover occurred, leading to the non-life-threatening injuries. The firefighters were treated at local hospitals for burns and have since been discharged. None of the home’s residents were injured, but the structure sustained significant damage.

A flashover is defined as “the sudden full-room involvement in flame” when everything ignites at once and the temperature rises dramatically, according to Fireengineering.com.

Firefighters inside “bailed out, with one mayday being transmitted,” according to a statement from Hillsdale Fire Chief William Farrell.

The Bergen County Prosecutor’s Office and the Hillsdale Fire Marshal are investigating the cause of the fire, but it is not considered suspicious.

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