Two maximum security prisoners are recovering in hospital after separate gang-related attacks at Auckland Prison today.
Authorities had to intervene in two separate incidents this afternoon in which both victims were attacked by other prisoners using makeshift weapons.
Exactly how many prisoners were involved is not clear.
A statement released by Corrections said "several'' perpetrators had since been placed on directed segregation as a result of today's events.
Prison director Andy Langley confirmed both violent attacks were gang-related and praised prison staff who stepped in to secure the situation.