A 77-year-old man has become the third prisoner to die in custody after testing positive for covid-19.
He is the second prisoner to die at HMP Littlehey in Cambridgeshire with the virus.
This comes after another prisoner died in hospital on Saturday after contracting Covid-19.
The 66-year-old man, who was already receiving end-of-life care, was serving a sentence at HMP Manchester, the Prison Service confirmed.

The terminally-ill inmate had an underlying condition before he tested positive, authorities said.
The first virus prisoner to die was an 84-year-old man who was also an inmate at Littlehey in hospital on March 22.
Following the death of that inmate, named sources claimed he was convicted paedophile Edwin Hillier.

A Prison Service spokesperson told the Mirror Online: “An 84-year-old prisoner at HMP Littlehey died in hospital on March 22. Our thoughts are with his family at this time.
“As with all deaths in custody, there will be an independent investigation by the Prisons and Probation Ombudsman.”
As of the weekend, 19 inmates had tested positive for Covid-19 across 10 UK jails and four prison staff had tested positive for the disease across four jails.
Three prisoner escort and custody services staff have also tested positive for Covid-19.
The Prison Service said robust contingency plans have been put in place at its facilities in consultation with Public Health England and the Department of Health and Social Care.
It added that prisons are well prepared to take immediate action wherever cases or suspected cases of Covid-19 are identified, including the isolation of individuals where necessary.