Archive · 14 Sep 2026
Iranian Nuclear Chief Blocked From IAEA Vienna Conference
Mohammad Eslami is a senior Iranian official who leads Iran’s nuclear organization.
He was supposed to speak at an important meeting of the International Atomic Energy Agency in Vienna.
Austria did not allow him to enter the country.
A US official said the United States urged Austria not to give him a sanctions waiver.
The official said Eslami’s appearance could have made Iran seem more accepted at the meeting.
Another, lower-level Iranian representative may still speak later in the week.
US Energy Secretary Chris Wright plans to say that Iran must not obtain a nuclear weapon.
He will also call for Iran to cooperate with international inspectors.
The IAEA has reported construction at a guarded Iranian site called Pickaxe Mountain.
Austria denied Iranian nuclear official Mohammad Eslami entry to attend the IAEA general conference in Vienna.
The decision followed US pressure against granting Eslami a sanctions waiver, according to a US official.
Eslami had been scheduled to address the conference at its Monday opening, but a lower-level Iranian representative may speak later.
US Energy Secretary Chris Wright is expected to say Iran must not develop or obtain a nuclear weapon and must cooperate fully with the IAEA.
The IAEA reported construction activity at Iran’s heavily fortified Pickaxe Mountain site, which is suspected of nuclear-related activity.
- Who
- Mohammad Eslami, Iran’s vice president for nuclear affairs and head of the Atomic Energy Organization of Iran, was denied entry; the United States and Austria were involved in the decision.
- What
- Austria blocked Eslami from attending and addressing the International Atomic Energy Agency’s general conference after US pressure over a sanctions waiver.
- When
- Before the conference’s scheduled Monday opening; a lower-level Iranian representative may speak later in the week.
- Where
- The conference is being held in Vienna, Austria.
- Why
- According to a US official, Washington opposed granting Eslami a waiver because his attendance could lend credibility to Iran; the United States also says Iran must not obtain a nuclear weapon and must cooperate with the IAEA.
US Administration Position
Iranian Representation
Conference access
US Administration Position
The Trump administration urged Austria to deny Eslami a sanctions waiver, preventing a senior Iranian official from speaking at the conference’s start.
Iranian Representation
Iran had sent Eslami to attend the conference, and he had been scheduled to address it; a lower-level Iranian representative may still speak later.
Nuclear oversight
US Administration Position
The United States says Iran must never develop or obtain a nuclear weapon, fulfill its safeguards obligations, and provide the IAEA with necessary access.
Iranian Representation
The provided reports do not include an Iranian response to the entry denial or to the US demands.
- Blocked official
- Mohammad Eslami, Iran’s vice president for nuclear affairs and head of its Atomic Energy Organization
- Conference
- International Atomic Energy Agency general conference
- Location
- Vienna, Austria
- Reported reason
- The United States urged Austria not to grant Eslami a sanctions waiver allowing entry
- Planned US speaker
- Energy Secretary Chris Wright
- Iranian site mentioned
- Pickaxe Mountain, where the IAEA observed construction activity
- Possible Iranian participation
- A lower-level Iranian representative may address the conference later in the week
