20th anniversary of World Trade Centre bombing commemorated in NYC

The attack, which utilized a car bomb and hit the north tower, killed six people
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White roses lay at the memorial site after the 20th Anniversary Ceremony for the 1993 World Trade Center bombing at Ground Zero on February 26, 2013 in New York City. The attack, which utilized a car bomb and hit the north tower, killed six people. (Getty Images)
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Former New York City Mayor David Dinkins lays a white rose at the memorial site during the 20th Anniversary Ceremony for the 1993 World Trade Center bombing at Ground Zero on February 26, 2013 in New York City. The attack, which utilized a car bomb and hit the north tower, killed six people. (Getty Images)
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Mourners attend mass at St. Patrick's Roman Catholic Church, prior to the 20th Anniversary Ceremony for the 1993 World Trade Center bombing at Ground Zero on February 26, 2013 in New York City. The attack, which utilized a car bomb and hit the north tower, killed six people. (Getty Images)
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Former New York City Mayor David Dinkins, left, and current New York City Mayor Michael Bloomberg, center, attend the 20th Anniversary Ceremony for the 1993 World Trade Center bombing at Ground Zero on February 26, 2013 in New York City. The attack, which utilized a car bomb and hit the north tower, killed six people. (Getty Images)
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The Port Authority Pipes and Drums band performs during the 20th Anniversary Ceremony for the 1993 World Trade Center bombing at Ground Zero on February 26, 2013 in New York City. The attack, which utilized a car bomb and hit the north tower, killed six people. (Getty Images)
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A woman cries while attending the 20th Anniversary ceremony for the 1993 World Trade Center bombing at Ground Zero on February 26, 2013 in New York City. The attack, which utilized a car bomb and hit the north tower, killed six people. (Getty Images)