Members of the security forces surround the United Nations headquarters in New York. Security was beefed up shortly after a man was spotted with a weapon outside the headquarters on Thursday, officials said.
A UN spokesman told AFP that UN headquarters had been closed. Police activities are going on there.
Police have surrounded a man standing on the side of the road in a photo published in various media. Weapons were found in the hands of the man.
A UN official, speaking on condition of anonymity, said the man was threatening to kill himself at the entrance to the UN headquarters. Public movement has been stopped on that road. However, various activities are going on inside the office.
The New York Police Department said on Twitter that a police investigation was under way and that people were being barred from entering the 24th Street and First Avenue areas. It is also being asked not to take vehicles to the area without urgent need.