New Yorkers feared that the World Trade Centre was on fire after what appeared to be smoke billowed from the top of the building. 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 officials 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 local newspaper: “It’s lit up by the tower lights. “It happens with fog and even clouds. It just looks like smoke.” READ MORE