Ireland has mounted its biggest security operation ahead of a visit steeped in symbolism and gestures designed to underline how warm neighborly relations have replaced centuries of animosity.

The bomb was found in the town of Maynooth, about 25 km from Dublin, the defense forces said in a statement. The military had deployed a team to the outskirts of the town, in county Kildare, in response to a police request.

The remains of the device were handed over to police for their investigations, the statement said.