Attendees, including President Biden, stood still at 8:46 am (local time), the moment the first plane struck the World Trade Center, before relatives started reading the names of the dead.
A commemoration in New York on the 20th anniversary of 9/11 held a moment's silence on Saturday for the almost 3,000 people killed in the attacks.
Attendees, including President Joe Biden, stood still at 8:46 am (1246 GMT), the moment the first plane struck the World Trade Center, before relatives started reading the names of the dead.
Six moments of silence will be held throughout the service.
Attendees, including President Joe Biden, stood still at 8:46 am (1246 GMT), the moment the first plane struck the World Trade Center, before relatives started reading the names of the dead.
Six moments of silence will be held throughout the service.