Carrickmacross detectives investigating the murder of Paul Quinn have conducted a joint operation with the PSNI in the south Armagh area.
The 21-year-old, from Cullyhanna, was beaten to death in a farm shed near Castleblayney in 2007.
In July of this year, Paul Quinn's mother Breege said Gardaí committed to "redoubling their efforts" into investigating his murder.
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On Tuesday and Wednesday of this week, a number of addresses were visited as part of the joint operation between gardaí and detectives attached to the PSNI major investigation team.
A garda spokesperson said the two policing bodies will continue to investigate the murder and encouraged anyone with information to make contact.
