Four killed in New York shooting, including police officer, suspect

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.