By David Hunter and Adam Evans
A 54 year old man arrested in connection with a 1990 bomb attack in Armagh which killed four people has been released pending a report to prosecutors.
Three police officers and a catholic nun lost their lives on the Killylea Road on July 24th.
The suspect was detained at Belfast International airport this morning, and has been questioned at Musgrave police station.
A 55 year old man was questioned last week, and has since been released pending a report to prosecutors.
Constable William Hanson, Reserve Constable Joshua Willis and Reserve Constable David Sterritt were killed in the blast alongside Sister Catherine Dunne.
A landmine located at a culvert on the Killylea Road was detonated on the 24th July 1990.
Another woman was also seriously injured in the blast.
Social media warning ahead of inquest into death of Noah Donohoe
Former senior police officer Jon Burrows confirms UUP leadership bid
Man’s body found in Cookstown in search for missing 21-year-old
Two taken to hospital following suspected gas explosion in east Belfast
Man critically ill in hospital following road crash in Co Tyrone n