The terrorist attacks on September 11, 2001, killed 2,996 people immediately. This number includes the 2,977 victims and the 19 hijackers who caused the attacks.
Of these 2,996 people, 246 people died on the airliners that flew into the World Trade Center, Pentagon and the field in Pennsylvania. The attack on the Pentagon claimed 125 lives, and the attacks on the World Trade Center claimed 2,606. Victims at the World Trade Center included workers in the building, emergency first responders and people fleeing in the streets. The attacks have also claimed the lives of a number of people who helped clear the wreckage afterward, as cancer and other conditions caused by toxic smoke have begun to emerge.