New claims have emerged of unrest at another jail soon after scandal engulfed Mt Eden prison.
Corrections Association president Beven Hanlon has claimed three prisoners "smashed" their way out of cells in Hawkes Bay over the weekend.
Mr Hanlon said a unit was locked down early because a staff shortage and "cost-cutting" was to blame for the incident.
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Inmates at the publicly managed jail were using pieces of wood with nails in them to smash windows, Mr Hanlon told Stuff.co.nz.