September 11th attack - American Airlines Flight 11 strikes the North tower

What happens in this video ?

September 11th attacks in 2001 – Video of the first aircraft hijacked (a Boeing 767 from American Airline) that crashed into the World Trade Center (WTC) in New York. All the 92 people onboard were killed as well as many others in the targeted tower.
Click hereafter for details about the 4 hijacked aircraft during September 11th attacks.