Four men have been charged in connection with the death of an inmate at Paremoremo Prison on March 5.
The two 20-year-olds, a 23-year-old and a 39-year-old are due to appear at the North Shore District Court via audio visual link on March 19.
Waitematā Detective Inspector John Suttonsaid they all have been charged with murder but because the matter was before the court could not comment further.
The inmate died after being allegedly attacked in the prison yard mid-afternoon.
