Murdered Northern Irish prison officer David Black will be buried today.

The father of two was gunned down on the M1 motorway as he drove to work at a top security prison last Thursday morning.

Meanwhile a 3rd man arrested for questioning over his death has been released without charge.

Gardaí last night released a man they had been questioning about his murder.

The 52-year-old was shot dead on the M1 in Co. Armagh last Thursday November 1st as he drove to work at Maghaberry Jail.

Men released without charge

A 29-year-old man was released from custody at Carrick-on-Shannon station in Co. Leitrim yesterday evening.

2 men being questioned by the PSNI were also released without charge in recent days.

Meanwhile the family and friends of David Black will gather later today for his funeral.

A private service will take place at his home before another will be held at Molesworth Presbyterian Church in Cookstown.

Mr. Black will be laid to rest afterwards at Kildress Parish Churchyard.

Last night it was reported that his family had requested that the Northern Ireland Deputy First Minister does not attend the service.

A Sinn Fein spokesperson says Martin McGuinness would be happy to attend if the family requested it however it is believed they do not want him there.

Dissident Republicans are being blamed for his murder.