The towers of the World Trade Center pour smoke shortly after being struck by hijacked commercial aircraft on September 11, 2001.
Over 3,000 people were killed in the attacks, including more than 400 police officers and firefighters. The second tower of the World Trade Center bursts into flames after being hit by a hijacked airplane in New York on September 11, 2001.
A firefighter walks amid rubble near the base of the destroyed South Tower of the World Trade Center. Rescue workers carry an injured woman after the twin towers attack.
The remaining tower of World Trade Center, Tower 2, dissolves in a cloud of dust and debris about a half-hour after the first twin tower collapsed. Cars smolder in the street as the destroyed World Trade Center burns in New York, September 11, 2001.
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