DUBAI/VIENNA (Reuters) - Supreme Leader Ayatollah Ali Khamenei said on Tuesday Iran would need to significantly increase its uranium enrichment capacity, underlining a gap in positions between Tehran and world powers as they hold talks aimed at clinching a nuclear accord.
Iran and six major powers - the United States, Russia, France, Germany, China and Britain - have less than two weeks to bridge wide differences on the future scope of Iran's enrichment programme and other issues if they are to meet a self-imposed July 20 deadline for a deal.