Efforts will continue over the weekend to try to save the Northern Ireland power-sharing executive from collapse because of a row over a flawed energy scheme.
The DUP and Sinn Féin have until Monday evening to resolve their differences or face fresh elections.
Northern Secretary James Brokenshire is staying in Northern Ireland for the weekend to offer any help that might resolve the row that has divided Stormont.
A scandal over a botched green energy scheme, which threatens to leave the taxpayer £490 million out of pocket, precipitated the resignation of Sinn Féin's Deputy First Minister Martin McGuinness on Monday.
It is a joint office so he took First Minister Arlene Foster, who established the eco-boilers scheme, with him and has doomed the institutions to fall unless Sinn Féin nominates a successor by Monday - a step the party has vowed not to take.
