NBC is reporting that there are reports of shots were fired outside the Capitol and the Capitol is on lockdown:
U.S. Capitol placed on lockdown
By Michael O'Brien, NBC News
The United States Capitol was placed on lockdown mid-Thursday afternoon following reports of shots fired in the vicinity of the chamber.
The reports of gunshots were unconfirmed. The House recessed shortly after indications of gunshots.
NBCNEWS
More info in updates as it becomes available.
Update I:
Missouri Sen. Claire McCaskill tweeted: Shots fired outside the Capitol. We are in temporary lock down.
Colorado Rep. Jared Polis tweeted: There had been some short of shooting here at the capital, we r on lockdown awaiting more info
Update II: From ericlewisO:
Reuters, via Al Jazeera tweets "several injured" (1+ / 0-)
Recommended by:TomP
US Capitol Police have reports of shots fired at 2nd St. and Constitution Ave. N.E., several injured-@Reuters
Update III: Reports that one policement injured. You know, a government employee that was "essential."
#US Capitol policeman injured near #Washington's Capitol Building after shots are fired. More soon. http://t.co/...
Update IV: The frontpage has this. I suggest peopel go there for latest reports.