A residential area in Cootehill in Co Cavan was sealed off earlier after an explosive device was found.
The army bomb disposal team was called to the scene just before midday, when a member of the public came across the device.
A cordon and road closures were put in place and a number of nearby houses were evacuated.
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The device was found to be viable and was rendered safe by a controlled explosion.
All evidence has now been handed over to gardaí. The scene was declared safe at 2:40pm.