Police in Northern Ireland have arrested two men in connection with the shooting of prison officer David Black.
The father-of-two was gunned down as he drove to work in County Armagh.
One of the two in custody is prominent Republican Colin Duffy, who was cleared of the killing of two British soldiers in 2009.
Politicians from both sides of the sectarian divide have condemned the murder.
Northern Ireland’s Deputy First Minister is Martin McGuinness:
“What they can’t kill is the peace process and we are the proof of that. Our community stands absolutely four square and united against the activities of these groups.”
The victim was shot in his car after a vehicle pulled up alongside him and the attackers unleashed a number of shots. His car then veered into a ditch and he died at the scene.