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Four prisoners have been charged over an attack that hospitalised an inmate and a prison guard with stab wounds, and left two other guards with injuries.
Police said today the four had been charged with wounding the fellow inmate at Upper Hutt's Rimutaka Prison with intent to cause him grievous bodily harm.
The victim was stabbed multiple times with what has been reported to be a sharpened bucket handle, puncturing a lung.
The female prison guard was stabbed in the back and two others injured as they tried to break up the attack.
Detective Sergeant Murray Porter, of the Upper Hutt CIB, said further charges relating to the attacks on the guards may follow.
"We were called in just after the incident, along with ambulance staff. We were able to quickly establish who was involved in the attack," he said.
He said the four men would appear in Upper Hutt District Court on Thursday.
- NZPA