Oklahoma bomb victims remembered
More than 1,000 people gathered at the former site of the Oklahoma City federal building to commemorate the 20th anniversary of the terrorist bombing in which 168 people died and dozens more were injured.
Former President Bill Clinton and Oklahoma Governor Mary Fallin were among those who spoke at the service at the Oklahoma City National Memorial, where the Alfred P Murrah Federal Building once stood.
The service started with a 168-second moment of silence and concluded with survivors and relatives of the dead reading the names of those killed in the April 19, 1995, attack.
Timothy McVeigh, an Army veteran with strong anti-government views, was executed for carrying out the bombing. His accomplice, Terry Nichols, is serving life in prison.
At the time, it was the deadliest terrorist attack on US soil.