'Heavyweights' joining Iran nuclear talks
The UK's William Hague, US Secretary of State John Kerry and Russian Foreign Minister Sergei Lavrov are said to be preparing to join negotiations with Iran over its nuclear programme.
As the talks moved into a third day, Iran said there were "serious issues" to be resolved, while one Western diplomat cited "considerable gaps".
Jeremy Bowen reports from Geneva.
22 Nov 2013
- From the section Middle East