A car tried to ram the White House security barriers close to the US Capitol building at 15th Street NW and Pennsylvania avenue.
Marking 'A' on the map shows where the incident is thought to have happened.
Police chased the vehicle for about one and a half miles to 2nd Street and Constitution Avenue, near the Capitol, where the shots were fired.
More top news
Conspiracy theorists claim this picture shows a "human-like being" fixing Nasa's Curiosity Rover on the surface of Mars.
The Brit actor has already won a Golden Globe and now a Screen Actor Guilds Award - which is widely known for predicting Oscar success.
A man standing trial accused of murdering two pensioners has been found hanging in his prison cell, police say.