David Black murder: Two men released in shooting inquiry
Two men who were arrested by police investigating the murder of Northern Ireland prison officer David Black have been released unconditionally.
The men, aged 34 and 42, were arrested in Coalisland, County Tyrone on Wednesday morning.
Mr Black was shot as he drove to work on the M1 in County Armagh on 1 November.
A new dissident republican paramilitary group calling itself the IRA admitted carrying out the killing.