Updated: Sept. 16, 2013 at 10:37 PM

Navy Yard shooting in Washington, D.C. (21 images)

Photos from the deadly shooting at a Naval Yard in Washington, D.C. on September 16, 2013. A gunman opened fire inside the Naval complex killing at least 12. UPI/Kevin Dietsch

Emergency vehicles line the street near the Navy Yard, a huge complex of buildings located along the Anacostia River waterfront on September 16, 2013 in Washington, DC. A gunman killed at least four and wounded others before being killed by police in a running gun battle. UPI/Kevin Dietsch

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