CHILTON: Primary school pupils heard a loud bang when experts detonated an unexploded bomb on a building site nearby.

The explosion happened at lunchtime at the Chestnut Fields site on Tuesday, which is being developed by David Wilson Homes.

In a letter to parents of children at Chilton Primary School in Downside, headteacher Sandra North said: “It was a good distance from school and, while we heard the bang, the school was never in any danger.”

She added: “The children were not worried by this.”

Ministry of Defence spokesman Chris Fletcher said: “It was an RAF practice bomb from the Second World War and it was inert.”