The First Minister of Northern Ireland is to hold talks about the potential exclusion of Sinn Fein from the Northern Ireland Assembly after police said members of the Provisional IRA may be involved in a ruthless murder.
Peter Robinson said his Democratic Unionists entered government with republicans on a commitment to exclusively peaceful and democratic means through support for the police, the courts and the rule of law as well as the dismantling of the structures of their terrorist organisation.
A DUP walkout would cause the collapse of the powersharing administration at Stormont.
Police in Northern Ireland said they suspected current members of the Provisional IRA of involvement in the murder of father-of-nine Kevin McGuigan in Belfast.