The attacker was armed with an AR-style rifle when he opened fire inside a skyscraper at 345 Park Avenue, Midtown Manhattan.
At least four people, including a New York City police officer, have been killed in a shooting inside a Midtown Manhattan office tower that houses major financial institutions and the headquarters of the National Football League, US media reports.
The shooting took place at about 6pm local time (22:00 GMT) on Monday at 345 Park Avenue in Midtown Manhattan, with police arriving at the scene within minutes, according to local media reports.
The suspected shooter, tentatively identified as a 27-year-old man from Las Vegas, was also found dead at the scene, CNN reported. The US network said authorities believe he died from a self-inflicted injury, citing multiple law enforcement sources.
The New York Post, citing unnamed police sources, reported that the gunman was wearing a bullet-resistant vest and was armed with an AR-style rifle when he opened fire inside the skyscraper. He had reportedly barricaded himself inside the building, possibly on the 32nd floor.
