Police investigating the murder of a prison officer in Northern Ireland have arrested two men.
Father-of-two David Black (52), was shot dead on the M1 motorway in Co Armagh earlier this month as he drove to start his shift at Maghaberry prison. The long-serving officer was nearing retirement at the time.
The suspects, aged 34 and 42, were detained in Coalisland, Co Tyrone and taken to the PSNI serious crime suite in Antrim.
A dissident republican group styling itself the IRA claimed the murder.
Dissidents have been engaged in a long-running protest inside Maghaberry about jail conditions.
The arrests were made as it emerged the majority of inmates involved in the so-called dirty protest have ended their action.
About 30 prisoners had been refusing to wash and were smearing excrement on the walls and floor of their cells as well as emptying urine into the prison landings.
The protest, which started last May, was in opposition to strip searches.
About £500,000 (€600,000) has been spent cleaning the cells during the period.
Four men have already been arrested and released in connection with Mr Black’s murder.
PA