A man has been taken into custody after causing a lockdown at the White House in Washington, the US Secret Service said. Washington DC police told <em>The National</em> that the Secret Service responded to a suspicious package in Madison Place Northwest and Pennsylvania Avenue. The US Secret Service said on Twitter that about 2.45pm, a man dropped a backpack and tried to jump a bike rack along the pavement on Pennsylvania Avenue. He was immediately taken into custody by Secret Service uniformed division officers.