Sinn Féin is bringing a proposal to the Northern Irish Assembly tomorrow calling for Arlene Foster to stand aside.

Stormont will discuss a vote of no confidence in the First Minister over her handling of a green energy incentive scheme - which is estimated to overspend by 400 million pounds.

Deputy First Minister Martin McGuinness is calling for Ms. Foster to stand aside to facilitate an independent investigation into the scandal.

He said the statement which she plans to make to the Assembly tomorrow does not have his authority or approval as deputy First Minister.