Dulles police confirmed reports from sources that Washington Dulles International Airport is on security lockdown. Flights are neither arriving nor departing at this time, and no passengers are passing through airport security. Police could not say at what time airport activities were put on hold, and police would not comment on the cause. Flight status as of 5:25 p.m. is still showing normal departures and arrivals. Transportation Security Administration agents said that no one at the information call center had any knowledge of the lockdown. Developing. . . .

UPDATE: As of 5:50 p.m., airport operations confirm that the situation has been resolved. Flights are getting back underway.

UPDATE: Yesterday, a flight from Germany was diverted from Washington to Boston after a woman on board claimed that she was experiencing flu-like symptoms. The Associated Press reports that the woman was admitted to Massachusetts General Hospital, while the flight continued on to Dulles.

Photo used with permission under a Creative Commons license with Flickr user ehpien