A fire broke out at a large two-family home in Concord on Sunday evening, drawing about 65 firefighters from more than a dozen surrounding communities to provide support and relief at the end of a sweltering day, officials said.

A firefighter was taken to Emerson Hospital with heat exhaustion, the Concord Fire Department said in a statement. No other injuries were reported.

The department said it responded around 9 p.m. to the fire at 119 Sudbury Road, a three-story house a short walk from the Concord stop on the Fitchburg commuter rail line.

Heavy flames were visible on the second-story back porch and had spread inside the home to the second and third floors when firefighters arrived, the statement said.

Six alarms were raised to bring additional firefighters to the scene “due to high temperatures from the heatwave,” the fire department said.

The fire was brought under control around 10:25 p.m., the department said. Crews remained on scene late Sunday evening looking for hot spots, the statement said.

All residents who lived in the house were moved as the second and third floors suffered severe fire, heat and water damage, the statement said.

The property has a total assessed value of $1,795,500, according to city records.

The fire is being investigated by the Concord Fire Department and the Massachusetts State Police Fire and Explosion Investigation Unit assigned to the Concord Fire Marshal’s Office. state, according to the statement.

Fire crews from Bedford, Lincoln, Lexington, Weston, Acton, Maynard, Sudbury, Hanscom, Wayland, Littleton, Carlisle, Boxborough, Burlington, Stow, Westford and Chelmsford, as well as Billerica EMS, responded to the scene, according to the communicated. .

“It was a great job by everyone involved to bring this fire under control and prevent it from causing more damage,” Concord Fire Chief Thomas Judge said in the statement. “I want to thank all of our mutual aid partners who responded and helped put out this fire in these extreme temperatures.”


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