A person touches names of those lost in the 9/11 attack on the World Trade Centre in New York. The names of the September 11 dead, some called out by children barely old enough to remember their fallen mothers and fathers, echoed across ground zero in a haunting but hopeful tribute on the 10th anniversary of the terror attack.
A woman, whose husband was killed in the September 11, 2001 terrorist attacks, comforts her children while visiting the National September 11 Memorial. Weeping relatives of victims streamed into the newly opened memorial and placed pictures and flowers beside names etched in bronze.
Family members hold up a picture as President Barack Obama, first lady Michelle Obama, former President George W. Bush and former first lady Laura Bush attend the 10th Anniversary Commemoration Ceremony at ground zero in New York. Obama read a Bible passage after a moment of silence at 8.46 a.m., when the first jetliner slammed into the north tower 10 years ago.
A young boy is surrounded by flags and people as he leans on one of the perimeter walls surrounding a reflecting pool at the National September 11 Memorial. The New York ceremony was the centrepiece of a day of remembrance across the country.
Mourners pay their respects at the north pool of the National September 11 Memorial during a ceremony marking the 10th anniversary of the attacks. The site looked utterly different than it had for any other September 11 anniversary: Along with the names in bronze, two man-made waterfalls flowed directly over the footprints of the towers, surrounded by dozens of white oak trees.
Participants in a unity rally held by the New York chapter of the Council on American-Islamic Relations march at City Hall Park on Sunday, a few blocks from the World Trade Centre in New York.
The Tribute in Light shines above Lower Manhattan, marking the 10th anniversary of the attacks at the World Trade Centre site in New York.