Washington's Navy Yard on Lockdown Amid Reports of 'Active Shooter'

An active shooter was reported at the Washington Navy Yard on July 2. Police responded en masse to the scene, as seen in this video. The US Navy tweeted that no incident could be confirmed, though they did confirm a lockdown was in place. In a previous shooting incident in September 2013, 12 people were killed by a civilian contractor working at the facility. Credit: Twitter/GretaGreta