Boston Fire says a plumbing torch was the cause of a two-alarm fire that caused massive damage and injured a firefighter Monday night.
The fire happened around 10 p.m. at 217 Lexington St., a three-unit building. One unit was vacant and there were three residents in the other two units.
All residents got out safely. One firefighter was transported to Massachusetts General Hospital for a shoulder injury.
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Fire investigators say work being done on the third floor with the torch caused the fire. The damage was estimated at $200,000.