Fire fears after “smoke” envelops top of New York’s World Trade Center

New Yorkers say they feared that the World Trade Center was on fire last night after what appeared to be smoke billowed from the top of the building.

Many took to social media after a cloud of what appeared to be smoke enveloped the top of the 104 storey high-rise designed by Skidmore, Owings & Merrill.

Twitter user Jamie Slade shared an image of the strange cloud at the top of the tower, writing: “Is the World Trade Centre on fire?”

And Nick Orlando told his followers: “Fire on top of the Freedom Tower [the tower’s old name] right now.”

But Fire Department of New York officers played down the fears, tweeting: “We can confirm that there is no fire to report at the WTC.”

The cloud was reportedly caused by a steam release as part of routine maintenance, but this has not been confirmed.

A construction supervisor on the scene told a New York newspaper: “It’s lit up by the tower lights.

“It happens with fog and even clouds. It just looks like smoke.”