To rousing cheers, newly inaugurated President Barack Obama has stepped out of his limousine to greet part of the enthusiastic crowd that has lined the route of his US inaugural parade.
Obama and his wife, Michelle, got out of their car on Pennsylvania Ave, waved to the cheering spectators on both sides of the street, and then walked part of the way, smiling and waving.
A couple of moments later, Vice President Joe Biden and his wife, Jill, joined them on the walk.
Along the way, hundreds of people who had been packed on rooftops and balconies broke into loud cheers. They got an unobstructed view of the parade from above the large crowd.
The Obamas got back in their limousine for a few minutes and then got out again not far from the reviewing stand.
The parade route has also been lined with police and military personnel, who have saluted as the new president's limousine slowly moved past them.