Gardaí in Dundalk have arrested man (23) in connection with the murder of Seamus McMahon in Co Louth.

Two men entered a house at Saltown and shot Mr McMahon (41) on March 21st, 2010.

He was taken to Our lady of Lourdes Hospital in Drogheda with a suspected gunshot wound to the side.

He subsequently died from his injuries.

The arrested man was detained in Dublin this morning.

He is currently being held at Drogheda garda station under Section 4 of the Criminal Justice Act.