The Defence Forces have confirmed that a device discovered at the Aughinish Alumina plant in Limerick was a viable explosive device.
The Defence Forces Explosive Ordinance Disposal (EOD) team was called to assist An Garda Síochána, following the discovery of a "suspected device" in the area.
They were working at the scene from just before 7pm on Friday until 1pm yesterday morning.
Following an assessment, the EOD team confirmed the device was viable and it was rendered safe, the Defence Forces added.
