UPDATE: The New York Port Authority has confirmed to Business Insider that there is no fire at 1 World Trade centre.
NBC News reported that a fire broke out on the 88th floor.
Fire officials said that the blaze was reported to the FDNY at 7:42 a.m.
About 90 firefighters responded to the call.
Construction workers appear to have continued working through the call,
There are 90 stories of concrete floors built so far in 1 World Trade centre and steel has risen to the 102nd floor.
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