The crash occurred shortly before 2 p.m. (1800 GMT) on a rainy, foggy day at the 50-story AXA Equitable Center at 787 Seventh Avenue. Dozens of emergency vehicles swarmed the busy area, a few blocks north of Times Square.
The city fire department said on Twitter around 2:40 p.m. that one unidentified person was killed. Media reports said the person was the helicopter pilot.
Governor Andrew Cuomo, who was at the scene soon after the crash, told reporters that it appeared a helicopter attempted a forced emergency landing on the roof and that no one inside the building had been injured. It was not clear if the weather was a contributing factor.
The police department called it a “hard landing” on Twitter.
Production: Andrew Hofstetter, Roselle Chen, and Kia Johnson)