Washington Navy Yard on Lockdown

The Washington Navy Yard was on lockdown Thursday morning after reports of an active shooter in the area. A massive police response blocked roadways in the southeast of the city as an investigation into the report is currently underway. The Associated Press cited an unnamed official who said shots had been reported in a building, but that information has yet to be confirmed. Those inside buildings in the complex said they were evacuated. The Navy Yard was the scene of a deadly shooting September 2013 when veteran Aaron Alexis killed 12 people. It was the second-deadliest shooting on an American military base, after the 2009 Fort Hood shootings in Texas.