US must not back out of nuclear deal again, Iran says as envoy heads to Europe
- The comments come ahead of the Europe trip by Iran’s top nuclear negotiator to discuss efforts to revive the 2015 deal
- The US and Iran are planning to return to Vienna on November 29 after months of stalling to resume talks mediated by Britain, China, France, Germany, Russia and the EU

Iran on Monday demanded US guarantees it would never again pull out of the 2015 nuclear accord and warned Tehran will not accept any partial return to the deal.
Washington “must guarantee that no other American government can flout the world or international law, and that what was done will never be repeated”, foreign ministry spokesman Said Khatibzadeh told a news conference, referring to the 2018 pullout.
Ali Bagheri Kani, Iran’s deputy foreign minister and lead diplomat in nuclear talks with world powers, will visit London, Paris and Berlin later this week.
The US and Iran are planning to return to Vienna on November 29 after months of stalling to resume talks mediated by Britain, China, France, Germany, Russia and the European Union.
Restoring the nuclear deal, known as the Joint Comprehensive Plan of Action, would see Washington ease its sanctions on Iran, which will in turn scale back enrichment activity the West suspects is aimed at bomb-making. Tehran denies its nuclear programme seeks to produce weapons.

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China calls for Iran sanctions relief and US return to nuclear deal