The hand grenade found in a Gisborne street that sparked the evacuation of houses yesterday turned out to be a practice grenade containing no explosive.
A bomb disposal expert from the explosive ordinance disposal unit in Wellington examined the grenade and declared it safe.
Police had made it secure in a metal container shortly after a resident found it in a small box in a gutter.
"It is a Mills Mk 36 drill grenade, of Second World War vintage," the disposal unit team leader said.
"I believe it would have been used for training purposes only and would probably never have been a live grenade."