An historic bomb has been detonated by the defence force in Paraparaumu.
Children found the possible artillery round during the school holidays three weeks ago in the Belmont Regional Park.
A police spokesperson says the children had been handling the shell and planned to take it to their school’s show-and-tell.
An adult saw the children playing with the undetonated round, and alerted police this morning.
The Defence Force disposal unit blew up the projectile in a controlled explosion at Winstone Quarry.
A quarry employee says the bang was disappointingly quiet.