Update from @dcalerts:

“Suicide Investigation at 1320 hrs in the 100 Blk Pennsylvania Ave NW”

@alanhenney tweets around 1:15pm:

“U.S. CAPTIOL ON LOCKDOWN, DC Fire/EMS en rt 100 Pennsylvania Ave NW for reported SHOTS FIRED.”

“u/d U.S. CAPITOL SHOOTING/ LOCKDOWN; THIS MAY BE A SELF-INFLICTED SHOOTING. Package w/man treating as suspicious.”

“u/d US CAPITOL SHOOTING/LOCKDOWN, man is reported as adult male. He appears to be DEAD. Device found near body. Calling for EOD (bomb techs)”