Damage to Pentagon. The September 11 attacks were a series of four coordinated terrorist attacks by the Islamic terrorist group al-Qaeda on 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 property and infrastructure damage and $3 trillion in total costs. Four passenger airliners operated by two major US passenger air carriers (United Airlines and American Airlines) were hijacked by al-Qaeda terrorists. American Airlines Flight 77, was crashed into the Pentagon (the headquarters of the United States Department of Defense) in Arlington County, Virginia, killing all 64 people on board, including the five hijackers and six crew, as well as 125 people in the building. The impact severely damaged an area of the Pentagon and caused a large fire. A portion of the building collapsed, firefighters spent days working to fully extinguish the blaze. |