Mosque terror plot suspect is Sinn Féin activist who attended party conference addressed by Catherine Connolly

Sinn Féin says man arrested was at party event in Dublin six weeks ago but is not a memberSuspect in far-right extremism probe met Mary Lou McDonald campaigning in general electionCouple were admitted into Leinster House twice this year as guests of Sinn Féin senator

Catherine Connolly. Photo: Clodagh Kilcoyne/PA Wire

A far-right terrorism suspect in a plot to attack a mosque is a Sinn Féin activist.

The man arrested yesterday in a garda investigation into far-right extremism attended a party rally addressed by President Catherine Connolly just six weeks ago.