A new video released by Islamic State (Isis) militants claims to show an Isis suicide bomber walking into the Times Square, a major commercial intersection and neighbourhood in Midtown Manhattan, New York City, apparently to attack.

The footage, which also contains visuals from the Paris bombings, shows a man praying, and preparing a suicide vest, which he then wears under his jacket.

The Isis suicide bomber is then shown walking into various popular places around the Times Square. The clip ends with the would-be suicide bomber pulling the clip off a grenade. 

The New York City Police Department in a statement said that it was aware of the video and is now working with the FBI, the Joint Terrorism Task Force and the entire intelligence community "out of an abundance of caution," according to a CNN report.

Mayor Bill de Blasio, on other hand, has asked New Yorkers to go about their normal business without fear, the Daily Mail reported. "Stoking fear is the goal of terrorist organizations, but New York City will not be intimidated," he said.

On Monday, after the Paris attacks, Isis had released a video threatening to attack Washington.

Isis video warns of an imminent attack in New York