A prisoner from Kohuora Auckland South Corrections Facility in Wiri faces disciplinary action after attempting to set his cell on fire overnight.
Prison director Mike Inglis said the fire was quickly put out by the sprinkler system at the prison but Fire and Emergency New Zealand was called immediately.
"Prisoners in the affected wing were relocated within the prison overnight but were returned to the wing this morning following a comprehensive inspection," he said.
"Today's prison activities, including visits, Parole Board hearings and prisoner transfers to court and medical appointments have not been affected."