US President Donald Trump was abruptly led out of a news briefing by a Secret Service agent, after shots were fired outside the White House.
The agent walked on stage as Mr Trump was speaking and whispered in his ear.
Mr Trump was heard to say "Oh!" and "What's happening", as he left the room. The White House was placed on lockdown during Monday's incident.
The president returned nine minutes later to say the situation was under control and a man had been shot.
The US Secret Service confirmed the incident, saying there had been "an officer involved shooting at 17th Street and Pennsylvania Ave".
It said "a male subject and a USSS officer were both transported to a local hospital", adding that "at no time during this incident was the White House complex breached or were any protectees in danger".
President Trump told reporters he believed the US Secret Service had shot a suspect, who was armed "from what I understand".
He said did not know if the person harboured any ill intentions towards him.
"It might not have had anything to do with me," the president said.