POLICE yesterday sealed off a road in south Armagh several days after a dissident republican group claimed they had left a bomb at the home of an MI5 agent. The Concession Road in Conalig was closed last night from Cullaville, Co Armagh, to the border. In a call to The Irish News on Friday, a group calling itself the Irish Volunteers claimed a device had been left at the home of MI5 agent Declan Gregory. It is understood that Gregory has not lived in south Armagh since he was outed as a British agent.