
On September 11, 2001, at 8:45 am on a clear Tuesday morning, an American Airlines Boeing 767 loaded with 20,000 gallons of jet fuel crashed into the North Tower of the World Trade Center in New York.
The impact left a burning hole near the 80th floor of the 110-story skyscraper, instantly killing hundreds of people and trapping hundreds more on the higher floors.
As the evacuation of the tower and its twin began, television cameras broadcast live footage of what initially appeared to be a bizarre accident.
Then, 18 minutes after the first plane collided, a second Boeing 767 – United Airlines Flight 175 – appeared from the sky, turned sharply towards the World Trade Center and sliced through the south tower near the 60th floor.
The collision caused a massive explosion that spilled flaming wreckage onto surrounding buildings and onto the streets below.