Man questioned over planting of three bombs at water supply sites 

The man has no known connections with republican paramilitaries or any other type of violent extremist group

A Garda HQ statement said: 'As part of the investigation into the discovery of a number of attempted improvised explosive devices (IEDs) in the Northeast and Southwest of the country, a male (40s) was arrested on Sunday.' Picture: Niall Carson/PA

Gardaí are questioning a man as to why he planted three viable bomb devices at separate water supply sites across the country.

The suspect was arrested on Sunday in a joint Garda-PSNI operation as searches were being conducted at his Co Armagh home.