Ricky Hall
Ricky Hall pictured after a 2011 arrest in Baltimore.Baltimore Police

Two cross-dressing men were injured and one later died after police opened fire on their stolen vehicle outside the US National Security Agency.

27-year-old Ricky Shawatza Hall of Baltimore disregarded an order to stop by police on Monday outside the headquarters of the electronic espionage agency.

The NSA said the SUV accelerated toward an NSA Police vehicle, and officers opened fire, resulting in Hall being killed and the passenger wounded

The other man, named as 20-year-old Kevin Lamont Fleming by police sources, was admitted to hospital. An NSA officer was also hurt in the incident.

Hall and Fleming were dressed as women at the time of the accident, the FBI statement said, "but not in an attempt to disguise themselves from authorities".

The FBI added that the incident was not related to terrorism.

According to police, the suspects stole a car from a 60-year-old Baltimore man who picked them up for a motel "party". The two men arrived at the Terrace Motel in Elkridge around 7:30am local time on Monday, Howard County Police said.

After leaving the motel, the pair apparently became lost on the roads, taking a wrong turn that led to a restricted area.

NSA spokesman Jonathan Freed said: "The vehicle accelerated toward an NSA Police vehicle blocking the road.

"NSA Police fired at the vehicle when it refused to stop.

"The unauthorised vehicle crashed into the NSA Police vehicle."