Mohammad Eslami, head of Iran’s Atomic Energy Organization, arrived in Moscow on Monday for negotiations, Russian media reported, without specifying whom he would meet.
The visit comes after the UN Security Council decided not to permanently lift sanctions against Tehran. The decision followed a move last month by France, Germany and Britain to launch a 30-day process to reimpose measures, accusing Iran of failing to uphold the 2015 nuclear deal.
Tehran denies the charge, while Moscow has declared support for Iran’s right to pursue “peaceful nuclear energy.”