A new video has surfaced from inside the Manchester arena when the explosion occurred.  In the video below it appears that the concert hadn’t commenced yet when the first explosion went off as people were up walking around.  This seems like it was intentional by the attacker because most of the concert-goers would be still near the foyer where the bomb reportedly exploded.

You can hear mass panic in the upper deck as the woman recording the video processes what is taking place. She hears the explosion and turns around and asks ‘what just happened,’ then screams and ends the recording.