Man held over David Black murder released
A 51-year-old man arrested in the Republic of Ireland over the murder of a prison officer in Northern Ireland has been released without charge.
David Black, a father-of-two, was shot dead on the M1 in County Armagh on 1 November 2012 as he drove to work at Maghaberry Prison in County Antrim.
A file is being prepared for the Director of Public Prosecutions over the man who was released.
A 34-year-old man is still being questioned about the murder.
Both men were arrested on Monday during searches targeting dissident republicans.
Mr Black, 52, was the first prison officer to be murdered in Northern Ireland in almost 20 years.