Three people have been shot after gunfire rang out outside the headquarters of the National Security Agency (NSA) in the US.
A suspect was arrested in the incident outside America's electronic espionage agency in Maryland.
Shots were reportedly fired from a black SUV which pulled up at the entrance to the facility in Fort Meade.
An NSA spokesman was quoted as saying the situation was under control.
CBS News images showed the vehicle with what appeared to be bullet holes in the windscreen.
US President Donald Trump has been briefed on the incident.