Thousands of mourners are expected today at the funeral of the first prison officer murdered by Northern Ireland paramilitaries for almost 20 years.
Cookstown in Mid Ulster will come to a standstill as former colleagues, friends and neighbours pay their respects to David Black, 52.
The married father of two was gunned down by suspected dissident republicans during last Thursday's high-speed motorway ambush as he drove to work at the high-security Maghaberry prison in Co Antrim.
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.