A Boston firefighter died Saturday night after falling from a third-floor rear porch while battling a 3-alarm fire in Dorchester.

Robert “Bobby” T. Kilduff Jr., of Rescue Co. 2, suffered severe injuries in the fall at 18 Treadway Road and died at Boston Medical Center despite the best efforts of firefighters on scene, Boston EMS, and the hospital staff, Boston Fire Commissioner Rodney Marshall announced at a news conference around midnight.

Kilduff, a third-generation firefighter, was with the Boston Fire Department for 24 years and was a U.S. Marine veteran. He is survived by an adult daughter and son.

According to the Boston Fire Department, crews responded to the fire scene just after 8 p.m. on Saturday for reports of a structure fire. When firefighters arrived, heavy flames were showing from the third floor and through the roof of the building.

A second, and later a third, alarm was struck as firefighters worked to get the fire under control. Officials said crews quickly knocked down the fire and prevented it from spreading further.

During firefighting operations, a Mayday was called after a firefighter fell from the rear porch on the third floor.

BFD is investigating the cause of the fire.

Image via BFD on X