Obama praises 9/11 unity on a low-key 11th anniversary
Relatives gathered as they do every year at the site of the World Trade Center attacks as the US president made a low-key appearance at the Pentagon which was also attacked.
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Relatives gathered as they do every year at the site of the World Trade Center attacks as the US president made a low-key appearance at the Pentagon which was also attacked.
2996 people died in the attacks on September 11, 2001. Here, in numbers, is the story of the actions that took place that day.
The key moments of one of the worst days in US history in words and video.
Audio recordings made on the day of the 9/11 attacks document the reactions of flight crew, air traffic controllers and the US military as events unfolded.
The video shows the aftermath of the plane crashing in Pennsylvania.
The airline blames a technical error for flight numbers 93 and 175 going back into use, ten years after the 2001 attacks.