N-deal still possible, says Tehran19 May 2014 BBC Online
Iranian Foreign Minister Mohammad Javad Zarif has insisted that reaching a final nuclear deal with world powers is still within reach.
His comments came after Iran and six world powers - Britain, China, France, Russia, the US and Germany - ended a fourth round of nuclear talks in Vienna with little progress to report.
The West accuses Iran of trying to build a nuclear weapon.
Iran says its nuclear energy programme is for entirely peaceful purposes.