A New York City building has collapsed, and the fire department says people are trapped in the rubble. Firefighters were called to the three-story structure in Brooklyn around 4 p.m. Wednesday. News helicopter footage shows 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. The aerial videos show firefighters digging at least one person out of the rubble and removing them on a stretcher. The collapse happened in an area where construction had been occurring.