Iranian Foreign Minister Mohammad Javad Zarif, centre, attends talks on Iran's nuclear program in Geneva on Friday Nov. 22, 2013
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Iran nuclear: Kerry and Hague join Geneva talks

23 November 2013 Last updated at 23:22 GMT

US Secretary of State John Kerry is in Geneva, joining UK Foreign Secretary William Hague and other foreign ministers to work for a deal on Iran's nuclear programme.

The negotiations, now in their fourth day, hinge on Iran agreeing to stop enriching uranium in return for a loosening of sanctions.

The BBC's Middle East editor Jeremy Bowen reports from Geneva.