All of the 246 people on the four planes died in the crashes. 19 terrorists were also killed in the attacks. Both towers of the World Trade Center caught on fire after the crashes. The South Tower (2 WTC) burned for 56 minutes before it fell and was destroyed. The North Tower (1 WTC) burned for 102 minutes before it also fell. As the towers fell, parts of the towers hit other buildings around them. It is believed that because of this damage, a third building, 7 World Trade Center (7 WTC), fell at 5:20 p.m. Many other buildings in the area were damaged badly and had to be demolished later, leaving the whole World Trade Center complex destroyed. 2,602 people died at the World Trade Center.