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
Scientists concluded 12.5% of cardiovascular deaths could be avoided if more Britons changed their diets.
Chelsea Clinton has brushed off Donald Trump's threat to bring up her father's infidelities in a recent interview.
Sir Tom will be joined on the panel by Oscar-winning actress and singer Jennifer Hudson and rock star Gavin Rossdale.