Gas Explosion Sparks Fire at New Hampshire Mental Health Facility

Three firefighters injured, but all building occupants evacuated safely

Feb. 2, 2026 at 10:39pm

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A natural gas leak caused an explosion and fire at the Greater Nashua Mental Health facility in New Hampshire on Monday. About 40 people were inside the building at the time, but all were able to evacuate safely. Three firefighters were injured while responding to the incident, though their injuries were reported as non-life-threatening.

Why it matters

Gas leaks and explosions at healthcare facilities can pose serious risks to vulnerable populations, making this an important public safety issue. The incident also highlights the challenges first responders can face in dealing with emergencies during extreme weather conditions.

The details

The explosion occurred after firefighters had already responded to the facility for a report of a gas odor. As they were investigating, the blast happened, causing part of the building to collapse. Aerial footage showed flames and smoke billowing from the rubble.

  • The incident occurred on Monday, February 3, 2026.

The players

Greater Nashua Mental Health

The mental health facility where the explosion and fire took place.

Steve Buxton

Nashua Fire Chief, who provided details about the incident and the injured firefighters.

Sean Toomey

New Hampshire State Fire Marshal, who was investigating the cause of the gas leak and explosion.

Kelly Ayotte

Governor of New Hampshire, who offered thanks to the first responders for their 'heroic efforts'.

Jesci Larochelle

A local resident who felt her house shake from the force of the explosion, which occurred less than half a mile away.

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What they’re saying

“Three firefighters were injured when a natural gas leak caused an explosion and fire Monday at a New Hampshire mental health center, but the building's occupants all evacuated safely.”

— Steve Buxton, Nashua Fire Chief

“We must not let individuals continue to damage private property in San Francisco.”

— Robert Jenkins, San Francisco resident

What’s next

Investigators will continue to examine the cause of the gas leak and explosion, and the facility will likely need to undergo repairs before it can reopen.

The takeaway

This incident underscores the importance of robust safety protocols and emergency preparedness at healthcare facilities, especially those serving vulnerable populations. It also highlights the challenges first responders can face when dealing with emergencies during extreme weather conditions.