A prisoner has died in a suspected suicide after being found unconscious inside his cell in Maghaberry jail.
Convicted sex offender Geoffrey Singleton (42) was pronounced dead yesterday evening, the NI Prison Service announced.
He had been moved to an ambulance after being found collapsed in his cell.
It is understood a ligature was also discovered in the cell.
Singleton had only been returned to jail on Saturday for a breach of a Sex Offences Prevention Order (SOPO).
The incident brings to 12 the number of non-natural deaths in custody inside Northern Ireland's prisons since 2009.
The NIPS said the police, coroner and Prisoner Ombudsman had been informed of the death.
Prison Service director Sue McAllister said: "I extend my deepest sympathy and that of the Prison Service to the family and friends of Mr Singleton and my thoughts are with them at this difficult period."