At Least 10 People Shot At D.C. Navy Yard, Gunman On The Loose. (Update: 12 Reported Shot)

Police investigate at the scene of a shooting Monday morning at the Washington Navy Yard. Washington Post

Active Shooter at Washington Navy Yard, At Least 10 People Shot -- CBS/AP

WASHINGTON (CBSDC/AP) — At least 10 people have been shot at the Washington Navy Yard and an active shooter is still on the base grounds in Southeast D.C.

The U.S. Navy says shots were fired at 8:20 a.m. Monday at the Naval Sea Systems Command Headquarters building. D.C. police confirm that at least 10 people, including one D.C. police officer and one base officer, have been shot. The MPD officer was shot in both legs and transported to MedStar Washington Hospital Center with critical injuries.

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Update: Police search for active shooter on grounds of Washington Navy Yard in Southeast D.C. -- Washington Post

WNU Editor: This is a breaking news story.  Check CBS/AP for updates.

Update: Navy Yard Shooting Live -- WTOP

Update #2: reports coming in that there are three shooters.