The Army Bomb Disposal Unit removed the device from Edenderry.
An investigation is under way after a 'viable device' was found in Offaly.
The Army Bomb Disposal Unit has since made safe the device and removed it from a premises in the Castleview Park area of Edenderry.
It has been taken away for further examination.
Gardaí were alerted to the item at around midday.
John McNamee is the Chairperson of Derry Rovers Football club in Edenderry.
He says it's a deeply worrying situation: