Two prisoners tried to strangle a female prison officer in an attempt to get her to open a door that would have allowed them to escape, says one of the woman's relatives.
The inmates escaped their cells in a low-security wing at Waikeria Prison, about 30km south of Hamilton, at 8.30pm on Saturday.
Brendan Horan, former television weatherman and New Zealand First candidate for Tauranga, questioned the standard of security that allowed the prisoners to kick out the ground floor window of their cell and scale a wall that did not have razor wire.
The inmates then confronted prison officers, hitting them around the head with an iron bar.
A male officer managed to secure himself in the guard room while the female guard, Mr Horan's sister-in-law, fled to a toilet.