Gardaí in the Midlands have arrested a man in connection with the murder of Christy Daly in Clara, Co Offaly last month.
It is believed he is being detained at Portlaoise Garda station.
It is expected he will appear before a court in the morning to face charges in connection with the incident.
The body of Mr Daly, 47, from Ballycumber, Co Offaly, was found in a drain on 7 January.
He had been shot a number of times.