Three-story building was at the edge of a construction site where another edifice had been demolished

Firefighters dug through the rubble of a three-story building in Brooklyn on Wednesday after it collapsed at the edge of a construction site, killing at least one person and trapping others beneath the wreckage.

Firefighters were called to the scene in the borough’s Flatbush section at about 4pm. News helicopter footage showed dozens of firefighters scouring the debris, with a group homing in on one area and appearing to use a saw to cut through the wreckage.