Police are investigating the death of a long-serving prison officer who was gunned down by dissident republicans in a motorway ambush in Northern Ireland.
Married father-of-two David Black, 52, was shot several times from a car that pulled up alongside his on the M1 near Lurgan, Co Armagh, as he drove to work at Maghaberry jail on Thursday morning.
Colleagues said Mr Black, from Cookstown, Co Tyrone, had been actively considering retirement after more than 30 years' service.
Prime Minister David Cameron joined political leaders on both sides of the Irish border in condemning what he said was a "brutal murder". He said: "These killers will not succeed in denying the people of Northern Ireland the peaceful, shared future they so desperately want." Stormont First Minister Peter Robinson branded the culprits "flat-earth fanatics living in the dark ages, spewing out hatred from every pore".
Police have blamed dissident republicans opposed to the peace process. The violent extremists have been engaged in a long-running protest campaign against conditions inside HMP Maghaberry in Co Antrim - Northern Ireland's only maximum-security prison.
Ministers from the Northern Ireland Executive and the Irish Republic's government will discuss the murder at a North South Ministerial Council meeting in Armagh, according to the BBC.
Stormont Deputy First Minister Martin McGuinness insisted the murder would not destabilise the peace process. "Our community stands absolutely four-square and united against the activities of these groups," he said.
Mr Black is the 30th prison officer killed in Northern Ireland since 1974, though the first for almost 20 years. He was driving on the motorway between Portadown and Lurgan at about 7.30am when a dark blue Toyota Camry, with a Dublin registration, pulled alongside and several shots were fired. After being shot, Mr Black's black Audi A4 veered off the road and crashed into a deep drainage ditch.
Police Service of Northern Ireland Assistant Chief Constable Drew Harris said dissidents had been actively targeting prison officers. He indicated the gunshots, not the crash, had been the cause of death, adding: "Mr Black appears to have sustained very serious and probably fatal gunshot wounds. The motive behind this is sheer terror."
The Toyota believed to have been used in the attack - registration 94 D 50997 - was later found burnt-out in the Inglewood area of Lurgan, Co Armagh - a town with strong pockets of dissident support.
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