Rescue personnel respond along Liberty Street following the first explosion at New York's World Trade Center following the first explosion Sept. 11, 2001. Planes crashed into the upper floors of both World Trade Center towers minutes apart Tuesday in a horrific scene of explosions and fires that left gaping holes in the 110-story buildings. (AP Photo/Robin L. Marin)
Gallery: The Sept. 11, 2001, terrorist attacks
Sep. 10, 2011 @ 04:26 PM
On Tuesday, Sept. 11, terrorists hijacked airplanes and used them to destroy the Twin Towers in New York City and damage the Pentagon in Washington, D.C. One of the planes crashed in a field in rural Pennsylvania.
Excluding the 19 hijackers, the death toll stands at 2,998 with 24 more presumed dead,