Another round of crunch talks are underway in Stormont in a bid to save Northern Ireland's power-sharing deal.

Parties have until Monday afternoon to appoint an executive and deal with outstanding issues such as legacy, Brexit and the Irish language.

It is still unclear if the DUP will agree to discussions on Sunday.

Sinn Féin has said it will not share power with Democratic Unionists' leader Arlene Foster as first minister until a public inquiry into the Renewable Heat Incentive (RHI) is concluded.

They have until Monday to agree a power sharing deal or face a second election or a return to direct rule.

Chief negotiator Tom Elliott said "Whether we can make the deadline is still questionable.

"We have no idea how long the talks will go on for or if they will go beyond that 4pm Monday deadline."

Sinn Fein's Conor Murphy is warning there's a lot of work left to be done.

Minister for Foreign Affairs Charlie Flanagan says it'll take an extra push from all sides.