The United States is marking the 25th anniversary of the September 11, 2001, terrorist attacks with solemn ceremonies across the country. At New York’s World Trade Center site, relatives of victims are reading the names of those killed, while moments of silence are being observed to remember the victims and those who later died from 9/11-related illnesses.

Four former US presidents - Bill Clinton, George W. Bush, Barack Obama and Joe Biden - joined Vice President JD Vance at the Ground Zero commemoration. President Donald Trump is attending a separate ceremony at the Pentagon.

Nearly 3,000 people were killed in the attacks on the World Trade Center, the Pentagon and in Pennsylvania on September 11, 2001. The anniversary continues to evoke grief while highlighting the lasting impact of the tragedy on the US and the world.