Bushehr nuclear power plant - file image
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Fresh push for Iran nuclear deal

As envoys from the P5+1 group of nations begin a new round of negotiations with Iran over its nuclear ambitions, the BBC's Kim Ghattas considers what might be achieved.

US President Barack Obama has urged US senators to hold off from proposing more sanctions against Iran to allow time for world powers to complete a deal on Iran's nuclear programme.

His comments came as envoys from the P5+1 group of nations gathered in Geneva for a new round of negotiations with Iran.

The BBC's Kim Ghattas reports on what the discussions might achieve.