A lower-level Iranian representative may still address the conference later in the week, but one of Tehran's most senior nuclear officials has been barred from speaking at the opening of the event.

The Trump administration pressured the IAEA to block an Iranian official from speaking at its 70th General Conference amid a historic nuclear

The head of Iran’s Atomic Energy Organization is not expected to attend the annual gathering of the U.N. nuclear watchdog’s member nations in Vienna for the first time in many…

Iran's Atomic Energy head is not expected at the IAEA conference. He faces an international travel ban, impacting relations with the West. Austria sought a waiver for his…