Bomb experts have been called to a Wellington backyard where a possible grenade has been found.
Police and New Zealand Defence Force bomb experts were called about 1.30pm today to examine what is thought to be a grenade in a Mount Cook backyard.
At this stage bomb experts were unsure whether it was a grenade, said police duty Inspector Chris Tate.
Residents and neighbours were not in any danger if they kept their distance as grenades had a limited range of around eight metres, said Mr Tate.
"The only danger is if someone is playing with it."