World powers negotiating with Iran over its nuclear programme are united in their search for an agreement and are not discussing an extension of the deadline, US Secretary of State John Kerry said on Thursday.
A U.S. think-tank says Iran may have violated last year`s interim nuclear deal with world powers by stepping up efforts to develop a machine that could enrich uranium faster, but another expert group said it saw no breach.
Iran is failing to address suspicions it may have researched how to build an atomic bomb, a U.N. watchdog agency`s report showed on Friday, potentially complicating efforts by six powers to reach a deal with Tehran on its nuclear programme.
Paris: US Secretary of State John Kerry Wednesday claimed he was "driving towards the finish" to secure what would be a historic deal with Iran over its nuclear programme as a November 24 deadline looms.
The US has not struck a deal with Iran on its controversial nuclear programme, saying it would look to lift sanctions on it only after Tehran has determined to uphold its end of the agreement, a top American official has said.
Iran`s supreme leader Ayatollah Ali Khamenei reiterated on Wednesday his country`s "red lines" in negotiations with world powers over its controversial nuclear programme due to resume next week in Vienna.