An SUV truck drove into the gates of the National Security Agency headquarters on Monday morning. One of the two alleged attackers was shot dead at the scene by security.
Police sources say two more are being treated for injuries as a result of the attack. Emergency workers were seen carrying a person in uniform to one of the ambulances.
NBC has cited inside sources claiming that the two men were disguised as women at the time of the attack. It further alleges that a gun and a quantity of illegal drugs were found in their Ford Escape.
Chopper footage at ABC7 shows a significant police presence. The footage shows two damaged vehicles outside the gates.
FBI is investigating the incident, with police refusing to provide detailed comment, saying that the incident took place on NSA property. Fort Meade houses 11,000 military staff and 29,000 civilian employees.