Five prisoners have been charged after a stabbing at Auckland Prison on November 12.
The five men were charged with wounding with intent to cause grievous bodily harm.
They are scheduled to appear via audio-visual link at the North Shore District Court on December 15, police say.
Another man was charged with wounding with intent to cause grievous bodily harm following a stabbing incident involving prisoners on the same day.
He is next due to appear in the North Shore District Court via audio-visual link on December 18.