A helicopter crashed onto the roof of a skyscraper on Seventh Avenue in New York City yesterday (June 10) and burst into flames, killing the pilot, media reports said.

There is no indication that the crash is terror related New York City Mayor Bill de Blasio was quoted as saying in a Wam report.

The helicopter was only in the air for 11 minutes, officials said.

No debris was visible on the pavement or road below the scene of the AXA Equitable building, which is about 229-metres and more than 50 storeys high, reported BBC.

"At approximately 1:32 this afternoon, the helicopter took off at the 34th Street heliport and about 11 minutes later crashed across the street from where we are now," Police Commissioner James O'Neill said at a news conference.

Quoted by CNN, O'Neill said the first 911 calls came in at 1:43 p.m. ET and reported a crash and a fire on top of a 54-story office building on 7th Avenue.

Officials said several agencies are working together to figure out why the helicopter was in the area, and what went wrong.

New York authorities have preliminarily identified the pilot who died in Monday’s helicopter crash.

"We have him preliminarily identified, but it’s not confirmed yet. Plus we’re looking out for his family too," O’Neill said.

Asked if the pilot made a stress call from the helicopter, O'Neill said, "That’s part of the investigation – to see if there was any contact made with air traffic control."

Only a pilot was aboard the doomed aircraft. He was killed, and investigators were trying to determine if he had been trying to make an emergency landing.