Gardaí have released a man they'd been questioning about the murder of a prison officer in Northern Ireland.
52-year-old David Black was shot dead on the M1 in County Armagh last Thursday, while on his way to work at Maghaberry jail.
A 29-year-old man was released from custody at Carrick-on-Shannon station in County Leitrim yesterday evening.
Two men being questioned by the PSNI were also released without charge in recent days.
Meanwhile, David Black's family and friends will gather later this morning for his funeral.
A private service will take place at his home, before another will be held at Molesworth Presbyterian Church in Cookstown, Co Tyrone.
Mr Black will be laid to rest afterwards at Kildress Parish Churchyard.
Last night, it was reported that the family of Mr. Black requested that the North's Deputy First Minister Martin Mc Guinness does not attend the service. He says he would have been happy to attend, but will respect the family's wishes.