A water main break at Terminal 4 is causing further flight delays, the airport tweeted on Sunday.
The west end of Terminal four lay under about three inches (eight centimeters) of water, where maintenance crews were mopping up, with police and fire crews on site, the spokesman told AFP.
The eastern United States and Canada shivered under record-breaking low temperatures Saturday as Arctic blasts followed a deadly winter storm that left airports struggling to cope with the backlog of flights.
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The continuing chaos at the airport drew harsh condemnation from Senator Charles E. Schumer, a Democrat of NY, who called Sunday for "a thorough review" of the airport and the Port Authority of NY and New Jersey to find out what went wrong, especially since Thursday's storm had not come as a surprise.
The break happened in Terminal Four, which is a main global hub for the airport serving mainly Delta Airlines.
The airport was experiencing arrival delays of up to two and a half hours.
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"We're exhausted", he said.
The Port Authority said in its statement Sunday that airlines "remain in recovery mode, rebooking passengers from canceled flights and reuniting passengers with their luggage". It's now 11pm and we've just been told we won't get our baggage tonight. 12 worldwide flights arrived during the time of the break - all have now been de-planed and processed through customs. The disruption occurred while the U.S. Northeast continued to endure bone-chilling weather with the NY temperature at 17 degrees Fahrenheit (-8 Celsius).
Bitter cold is also disabling equipment on the tarmac.
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