The photos show the first responders battling the stubborn flames for days.
The airline had made a hole in the structure, about 100 yards deep.
They also show the plane debris and the FBI team on sight.
The officers spent days trying to recover bodies hidden in the debris.
Devastating Photographs Of The 9/11 Attack On Pentagon Which FBI Has Re-Released
Federal Bureau of Investigation (FBI) on March 31 re-released the photos that were taken when a hijacked American Airlines Flight 77 crashed into the side of the Pentagon, which killed all 64 people on board, along with 125 people who were inside the Pent
