Wife Karen, a retired teacher, added: "We heard shots fired, it sounded like firecrackers. We thought it was part of the concert.

"People were saying get down, get down and so we did. It was like mass havoc, panic, people were trampling over each other trying to get down.

"People were saying get behind the stage, get down and we crawled behind the stage. The shots they started coming much louder and closer."

Describing their escape, she added: "We jumped behind the stage. Someone made a ramp up to the top of the wall - we crawled, jumped and they caught us. We didn't know where to go. There was just an exodus of people."