An unexploded mortar shell found by children at the historic goldmining town of Waiuta has been deactivated by the army bomb disposal squad.
Greymouth police received a report shortly before 1pm yesterday of "an object" found at Waiuta.
"It appeared at that stage by the person who reported it to us that it was an old mortar. Police notified the Defence Force bomb disposal squad," the police media centre said.
"It was found to be exactly that - an old, unexploded mortar or 'drill round'."
Police said the old shell did not pose any danger to the public and it was disposed of at the site early last night by the Defence Force.