Iran and the US still aim to strike a mammoth nuclear deal by a November 24 deadline, a US official said after talks involving US Secretary of State John Kerry that yielded no apparent major breakthrough.
Iran said on Wednesday nuclear talks with six world powers would resume in early September, according to state television, after both sides agreed to continue talking for four more months to try to reach a final agreement on Tehran`s nuclear programme.
Two influential US senators have asked fellow lawmakers to support demands that Iran accept tough conditions in nuclear talks, including at least two decades of inspections, before Congress would agree to ease sanctions.
Britain and Germany`s foreign ministers will join US Secretary of State John Kerry in Vienna this weekend to seek to bridge what Washington called "significant gaps" in nuclear talks with Iran, London and Berlin said Friday.
Kerry warned Iran ahead of this week`s nuclear talks in Vienna that it has yet to prove that its nuclear ambitions are entirely peaceful in multiple rounds of talks with six world powers as a July 20 deadline nears.