Watch live as 9/11 memorial ceremony held in Pennsylvania to remember those killed on hijacked Flight 93

Former US President George W. Bush is to speak at a site in the town of Shanksville, Pennsylvania, to remember those who lost their lives when the hijacked Flight 93 was brought down on 11 September, 2001.

President Joe Biden is to join the ceremony later – which is already being attended by Vice President Kamala Harris and second gentlemen Doug Emhoff.

Twenty years on from the 9/11 terrorist attacks, memorials have been taking place in various locations around the United States to remember the nearly 3,000 Americans who lost their lives that day.