DUP leader in war of words with Micheál Martin

DUP leader Arlene Foster has rejected Fianna Fáil leader Micheal Martin's criticism of the Stormont Executive, branding it offensive and unjustified.
At the weekend, Mr Martin urged the Irish and British governments to directly intervene in Northern Ireland, claiming a DUP/Sinn Féin "stranglehold" on the institutions had caused "immense damage".