Dulles airport back to normal after burst pipe

Arriving and departing flights have returned to normal at Washington Dulles International Airport after delays caused by a burst pipe.

A pipe burst around 10:30 p.m. Sunday, triggering an alarm and leading to the evacuation of the FAA tower at the northern Virginina airport, spokesman Chris Paolino said. That resulted in the shuttering of departures and limiting of arrivals at the airport.

Some flights were diverted to other airports in the Washington, D.C. area, including Baltimore/Washington International Thurgood Marshall Airport. No numbers were available on how many flights have been delayed.

Single-digit temperatures and frigid winds gripped the Washington area over the weekend. 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.

Contributing: The Associated Press