The Federal Aviation Administration grounded all flights at Ronald Reagan Washington National Airport (DCA) Monday morning, CBS News reported.
An "active shooter" situation was ongoing in the area of the Washington, DC Navy Yard.
The Federal Aviation Administration posted the following notice on its website regarding DCA:
Due to OTHER / SECURITY, there is a Traffic Management Program in effect for traffic arriving Ronald Reagan Washington National Airport, Washington, DC (DCA). To see if you may be affected, select your departure airport and check "Delays by Destination".