September 11 attacks
The September 11 attacks (also referred to as 9/11) were a series of four coordinated terrorist attacks by the Islamic terrorist group al-Qaeda against the United States on the morning of Tuesday, September 11, 2001. The attacks killed 2,996 people, injured over 6,000 others, and caused at least $10 billion in infrastructure and property damage. Additional people died of 9/11-related cancer and respiratory diseases in the months and years following the attacks.
List of aircraft accidents and incidents by number of ground fatalities
There have been 200 aircraft crashes which are known to have resulted in ground fatalities. Of these, 62 have involved at least a dozen ground fatalities, 15 have involved at least 50 ground fatalities, and 3 have involved over 200 ground fatalities. The crashes of American Airlines Flight 11 and United Airlines Flight 175 into the World Trade Center as part of the September 11 attacks are by far the deadliest incidents of this sort, with approximately 2,500 ground fatalities attributed to the two crashes and subsequent collapse of 1 WTC and 2 WTC. The deadliest accidental crash of an aircraft was the 1996 Air Africa crash, which resulted in the deaths of at least 225 people on the ground.