Thousands attend the commemoration of the 50th anniversary of the March on Washington for Jobs and Freedom at the Lincoln Memorial in Washington DC on 28 August 2013
Media playback is unsupported on your device

President Obama marks I Have a Dream speech

28 August 2013 Last updated at 18:54 BST

The US is marking the 50th anniversary of the March for Jobs and Freedom, the civil rights rally at which Martin Luther King Jr made his historic I Have a Dream speech.

President Barack Obama will make a speech from the same spot on the Lincoln Memorial in Washington DC, at which members of the King family and veterans of the march will be present.