The Sinn Féin leader Gerry Adams has said that he would take Northern Ireland First Minister Peter Robinson's comments that the Northern institutions are under threat as a serious statement by him.
He said he would ask him to explain his statement and to reflect on it.
His comments come after the North-South Ministerial meeting planned for today at Dublin Castle was cancelled after the Democratic Unionist Party and the Ulster Unionist Party withdrew from all party talks.
It follows a decision of the North's Parades Commission not to allow a controversial Orange Order march in Belfast past the nationalist on its return route.
Mr Adams said it was not worth putting the institutions under threat because of the parade.
He said the governments have a responsibility to make it clear that progress is going to made in the North and he appealed for calm.
Mr Adams added he does not think the pulse of orange grass roots unionism wants calm, tolerance and respect and there is a big onus on the governments now to focus.
He said the only reason that you have to deal with issues in a crisis, is because you did not deal with them during the calm and he said that "we are reaping that harvest now."