Iran-Following the talks that had been scheduled to conclude on Friday, but were extended amid hopes of a possible breakthrough, foreign ministers of six major powers are set to meet in Geneva today, to negotiate a nuclear deal with Iran.

The US Secretary of State John Kerry has arrived for the talks involving the UK, Russia, France, China and Germany after three days of lower-level meetings.

Mr Kerry, who arrived in Geneva early on Saturday, had the goal of continuing to help narrow the differences and move closer to an agreement. The state department said.

The ministers has however expressed hope to close a deal for Iran to curb uranium enrichment in return for a loosening of sanctions.

Although Iran has insisted it must be allowed to enrich uranium for power stations, as it denies seeking nuclear weapons.

Some US politicians say they will push for more sanctions if the talks fail.

Negotiators have been working since Wednesday to try to find an agreement that is acceptable to both sides.

EU foreign policy chief Baroness Catherine Ashton is leading the conference.

On Friday she briefly met Iranian Foreign Minister Mohammed Javad Zarif for a conversation that Iran's official Irna news agency described as "complicated and tough".