The Iranian delegation directly involved in the negotiations with Washington is under the full control of Iran's top leadership and acts with the approval of Supreme Leader Mojtaba Khamenei, said Iranian spiritual leader's representative in the Islamic Revolutionary Guard Corps, Abdallah Haji Sadeghi, APA reports.
"The negotiations are taking place under the full control of our senior officials and depend on the support of the Supreme Leader," Sadeghi said, as quoted by Al Mayadeen television . Sadeghi added that Tehran "will not back down from any threats or pressure."