Crews at Dulles International Airport are working to restore normal operations after a burst water pipe in the airport's control tower triggered an alarm and forced an evacuation that resulted in the diversion of some flights to other airports.
A spokesman for the Metropolitan Washington Airports Authority, Chris Paolino, said early Sunday the tower had reopened but arrivals and departures remained limited.
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Paolino did not comment on the number of flights that had been diverted.
Single-digit temperatures and frigid winds gripped the Washington area over the weekend, resulting in power outages and frozen or burst water pipes in a number of areas.
Dulles International is the nation's 23rd busiest airport. It served nearly 10.6 million passengers during 2013, the latest year those statistics were available from the Federal Aviation Administration.