United States blocks Iran nuclear chief from Vienna IAEA conference after Austria revokes visa
The United States has blocked Iran's nuclear chief, Mohammad Eslami, from attending this week's annual General Conference of the International Atomic Energy Agency in Vienna. Eslami and his delegation cancelled their trip after Austria revoked his visa, according to Iranian state media. The decision has added a new diplomatic dispute to the opening of the five-day meeting at the agency's headquarters.
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Iran's ambassador to the agency, Reza Najafi, told delegations at the conference opening that Eslami's visa had initially been approved before being withdrawn. He said the move was a direct infringement on Iran's rights as a member state and argued that it violated the legal framework governing attendance at the meeting. Iran's Foreign Ministry spokesperson, Esmaeil Baghaei, accused the United States of pressuring Austria into the decision.
The row is tied to the UN Security Council travel-ban framework linked to the pre-2015 sanctions system, which was reinstated last year by European signatories. Under that framework, member states are required to prevent the entry or transit of designated Iranian officials connected to the country's nuclear and ballistic missile programmes. Eslami, who heads Iran's Atomic Energy Organization, has regularly attended and addressed the Vienna conference since taking the post in 2021.
The incident matters because the IAEA General Conference is one of the main annual forums for nuclear diplomacy, bringing together member states to discuss safeguards, inspections and wider nuclear policy. Any dispute over access for senior officials can quickly become a test of how sanctions rules are applied in practice. It also comes at a sensitive moment for Iran's relations with the agency and with Western governments over its nuclear programme.
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Iran and Russia have both described the episode as part of a broader effort to stop Iranian officials from obtaining international travel visas. Iran's ambassador said the cancellation and the legal justification offered for it showed what he called the politicisation of the organisation. The dispute also reflects the continuing impact of the snapback mechanism associated with the Joint Comprehensive Plan of Action, which has remained a point of contention between Iran and the European signatories.
What remains unclear is whether the visa decision will lead to any formal complaint or further diplomatic response at the agency. It is also not clear whether the issue will affect Iran's participation in the rest of the conference or future meetings in Vienna. The immediate focus now is on how other member states interpret the travel-ban framework and whether the dispute widens beyond this week's gathering.
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