The total number of people who died during the 9/11 attacks was 2,996, including 2,977 victims and 19 hijackers who committed murder-suicide. The breakdown includes 265 people on the four planes (with no survivors), 2,606 in the World Trade Center and surrounding area, and 125 at the Pentagon. Among the dead were 343 firefighters, 72 law enforcement officers, 55 military personnel, and many civilians. The attacks remain the deadliest act of terrorism in history.