(http://t3.gstatic.com/images?q=tbn:ANd9GcSk7EWFwfTj--9DBNnTzkqHKkniTPsnEVi1Trbbo1LyKO8lOin2Bg)
The United States is stronger 10 years on from the 9/11 attacks and al-Qaeda is "on the path to defeat", President Barack Obama has said.
"As a resilient nation, we will carry on," he told Americans on the eve of the anniversary of the attacks.
Events are being held to commemorate the victims, amid warnings that al-Qaeda is behind a new "credible but unconfirmed" threat to Americans.
Nearly 3,000 people died on 9/11 in New York, Washington and Pennsylvania.
On Sunday, Mr Obama will travel to all three sites.
BBC