Heavy fire caused the first floor to collapse into the basement of a home on Denton Place in Stratford as flames consumed the building Tuesday morning, according to the fire department.
Firefighters were called to the scene at 44 Denton Place around 5:30 a.m., where they faced extreme temperatures of -4 degrees, fire officials said.
They arrived to find heavy smoke and intense heat, and began to check the home for anyone who may have been trapped when the first floor collapsed into the basement, according to the fire department.
The incident commander ordered all crews out of the building and they beat back the flames from the outside.
Fire companies from Bridgeport and Milford were called in for mutual aid. Crews from United Illuminating and the Southern Connecticut Gas Company also responded to the scene.
Fire officials said one firefighter suffered a minor hand injury.
Investigators learned renters had recently moved out of the burning building.
The Stratford Fire Marshal’s Office is working with the State Police Fire Marshal to investigate the cause of the fire.
Preliminary information shows it was sparked by an accidental heating plant failure, according to the Norwalk Fire Department.