— MWAA (@dcairports) September 16, 2013
Entire plane getting updates from Twitter on why we're trapped on the #dca tarmac: Navy yard shooting.
— Susan Page (@SusanPage) September 16, 2013
Around 30 planes were stranded on the tarmac while passengers waited patiently for news.
— Scott Stone (@scottdstone) September 16, 2013
From my view on the DCA Tarmac: ground stop for all planes, helos in the soggy air over Navy Yard. pic.twitter.com/J3hDdjRIl1
— Jordan Whichard (@JordanWhichard) September 16, 2013
Reports coming from the Navy Yard as saying several people have been killed, a shooter is dead but two more remain at large and appear to have escaped the scene.
Coincidentally, according to Reagan National's official website, the airport is due to undergo an emergency training drill on the morning of September 21. It's described as: "Full-Scale Emergency Exercise at Reagan National Saturday, Sept. 21."