An investigation is under way after the death of a prisoner at the Midlands Prison in Portlaoise.
The Irish Prison Service confirmed the death occurred yesterday.
It will be investigated by the Irish Prison Service, the Inspector of Prisons and An Garda Síochána.
In a statement, the Irish Prison Service said all deaths in custody are investigated by the Irish Prison Service, the Inspector of Prisons and An Garda Siochana, where circumstances warrant.
"The Irish Prison Service wish to express our condolences to the deceased's family and friends," the statement said.
