A man has been arrested in Northern Ireland in the inquiry into the murder of Paul Quinn in Co Monaghan last year.
Mr Quinn (21), from Cullyhanna, south Armagh, was beaten to death by a masked gang when he was lured to empty farm buildings across the border in Castleblayney, Co Monaghan, on October 20th last year.
A spokesman for the Police Service of Northern Ireland said one man was arrested and two properties were searched in south Armagh this morning in what he described as the third phase of the ongoing investigation into Mr Quinn's death.
The spokesman said the searches, as with previous operations last week, were carried out at the request of An Garda Síochána.
Three men - aged in their 20s and 30s - arrested by gardaí last Tuesday were released without charge on Thursday night. Three men arrested in the North on Thursday were also released at the weekend. Two other men had earlier been arrested and later released by the PSNI.
A total of 11 people have now been arrested in the past week in connection with the inquiry into Mr Quinn's murder.
An inquest into his death opened briefly in Dundalk last month but was adjourned due to the ongoing inquiries.