- 57 updates
A third man was arrested tonight by police investigation the murder of a prison officer in Northern Ireland.
The suspect, 29, was detained in the Irish Republic by police.
Earlier, two other men including prominent dissident republican Colin Duffy were arrested in connection with David Black's murder
Mr Black, 52, was gunned down during a high speed ambush yesterday on a motorway as he drove to work at Maghaberry high security prison.
His killing has prompted condemnation from across Britain and Ireland and police have blamed it on dissident republicans.
The Police Service of Northern Ireland has welcomed independent charity Crimestoppers' offer of a £10,000 reward for information leading to the arrest and conviction of those responsible for the murder of prison officer David Black.
Independent charity Crimestoppers is offering a reward of up to £10,000 for information leading to the arrest and conviction of those responsible for the murder of a prison officer in Northern Ireland.
David Black was gunned down on his way to work in a motorway ambush yesterday.
Northern Ireland's First Minister Peter Robinson has branded the dissident republican who murdered David Black as the enemies of everyone across the island of Ireland.
Mr Robinson's comments came after ministers from the Northern Ireland Executive and the Irish Republic's government discussed Mr Black's murder at a North South Ministerial Council meeting.
Detective Superintendent Keith Agnew, from the Police Service of Northern Ireland, who is leading the investigation into the murder of prison officer David Black has given the following update:
Ministers from the Northern Ireland Executive and the Irish Republic's government discussed the murder of prison officer David Black today at a North South Ministerial Council meeting in Armagh.
Speaking after the meeting, Irish prime minister Taoiseach Enda Kenny said:
Northern Ireland's deputy First Minister Martin McGuinness has said supporters of dissident republicans need to "get real" and realise they are a "ragbag" of criminals out for their own ends.
Speaking after the murder of prison officer David Black yesterday, Mr McGuiness said they swim "in a sea of criminality and drugs" while wrapping themselves in a flag of political convenience.
"People need to get real. They need to recognise the danger that a tiny number of people can represent to human beings and they need to recognise that the world has changed, that over the course of the last 15 years we have built something, all of us together, which we can be very proud of."
Earlier, the Sinn Fein veteran and First Minister Peter Robinson stood shoulder to shoulder with Irish prime minister Taoiseach Enda Kenny and his deputy Tßnaiste Eamon Gilmore after a meeting in Armagh as they jointly denounced the killing.
Asked about the motive behind the attack of prison officer David Black, Northern Ireland Secretary Theresa Villiers told the House of Commons:
Sue McAllister, director-general of the Prison Service in Northern Ireland, met David Black's grieving widow, Yvonne, at her home in Cookstown, Co Tyrone, today.
Mrs Black was meanwhile praised in the House of Commons for her response to her husband's brutal murder.
The Democratic Unionist Party's Westminster leader Nigel Dodds paid tribute to her "brave and courageous words" in calling for no retaliation.
Northern Ireland Secretary Theresa Villiers said Mrs Black's stance was "courageous and entirely right".
Latest ITV News reports
Three men, aged 31, 29 and 44, have been arrested following the killing of prison officer David Black in Northern Ireland.
Leaders in Northern Ireland have condemned the "horrific" motorway murder of a veteran prison officer by suspected dissident republicans.