Police and gardaí investigating the murder of Keith Rodgers in the Border village of Cullaville arrested a man today.
Mr Rodgers (24), with an address at Hackballscross, Co Louth, a short distance from where he was shot, died following a short confrontation between two groups yesterday morning.
He suffered three gunshots to the chest and died later in Louth County Hospital in Dundalk.
The shooting happened at a junction near Malachy Conlon Park, a small residential area in the village.
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Two other men were injured in the shooting. One is being treated for head wounds in Louth County Hospital; a third has been treated for wounds to his leg at Daisy Hill Hospital in Newry, Co Down.