Junior cricket boys who went to play a match at Kamo hoped to hit some big shots but they didn't have an arsenal of machine gun ammo and a few small bombs in mind.
When they went to retrieve a ball during the game on Sunday afternoon, young players stumbled across three practise mortar bombs and an empty machine gun bullet belt. The items were tucked under bushes near a creek, down a bank on the park boundary.
They have been given to the NZ Defence Force to dispose of safely, Northland Police Inspector Al Symonds said.
None of the items have been reported missing or stolen, and the possession of used machine gun bullet chains is not illegal, Mr Symonds said. The children did the right thing by telling their parents, who played it safe and notified the police, he said.
Northern Advocate editor Craig Cooper, who was a spectator at the game, reported the find after showing the items to cricket coach Rocket Turner.