Man stands at reflecting pool ahead of ceremonies commemorating the 18th anniversary of the September 11, 2001 attacks at the 911 Memorial in lower Manhattan in New York

Video. Watch again: US marks 18 years since September 11 attacks

On the 18th anniversary of 9/11, the names of the nearly 3,000 people killed in the terrorist attacks of September 11, 2001 are read. The names of those killed in the February 26, 1993 truck bombing of the twin towers are also read.

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