More videos shot on the day of September 11 2001 that were held back by The National Institute of Standards and Technology (NIST) as part of it’s investigation into the attacks reveal accounts of explosions in the base of the towers before the planes hit and before they collapsed.
The first video is shot close to the World Trade Center and shows a man describing an explosion in the North Tower lobby. It was reportedly shot by a news crew for WNBC.
Some of the audio has been retracted but the man describes flames “exploding out of the front of the world trade center” from the direction of the lobby elevators.
As he is giving the account the south tower is hit by the second plane and the camera pans up to capture the resulting fireball.