An inmate at Coldingley prison in Surrey has died after being stabbed in an assault at around 1pm BST on Friday 1 April. The man was named by the Prison Service as 25-year-old Madala Washington.
Washington was an inmate at Coldingley, a category-C training prison. According to the Ministry of Justice: "Coldingley is focused on the resettlement of prisoners. It provides a framework to support the achievement of realistic resettlement goals by offering opportunities to prisoners willing to work hard and accept responsibility for achieving those goals."
Surrey police told the BBC that they were treating the death as "unexplained", saying "officers attended the address shortly after 1pm following reports of a serious assault on an inmate at the prison."
The Ministry of Justice said that there would be an investigation by the independent Prisons and Probation Ombudsman "as with all deaths in custody".
Coldingley houses just over 500 inmates, the majority in single cells, with a few double cells as well. The prison governor is Jo Sims.