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Ashton on Iran nuclear deal: 'I take nothing for granted'

10 March 2014 Last updated at 09:52 GMT

The Iranian foreign minister, Mohammad Javad Zarif has told the visiting EU foreign policy chief, Catherine Ashton, that a nuclear deal could come in the next four months.

Baroness Ashton told the BBC's Lyse Doucet that there was "no guarantee" her talks would lead to a comprehensive agreement, and that she took nothing for granted.

World powers want Iran to scale back its nuclear work to ensure it cannot assemble a nuclear weapon.

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