November 13, 2026
International concerns about the Iranian nuclear program have escalated, after the International Atomic Energy Agency revealed serious and growing concern about a secret underground uranium enrichment facility in Isfahan.
The agency reported, in a confidential quarterly report distributed to member states on Friday, that Tehran announced the facility in June 2025, but it still imposes restrictions that prevent inspectors from entering it or viewing the details of its design.
The report explained that the agency “does not know the exact location of the facility, its status for safeguards purposes, or whether it contains nuclear material.”
The agency warned that the absence of information about Iran’s enriched uranium stockpile, in conjunction with the continued denial of international inspectors’ access to nuclear facilities since the attacks that occurred in June 2025, raises serious concerns related to the spread of nuclear weapons.
The report pointed out that Iran did not provide any new data regarding the status of its nuclear facilities and materials, and it remained outside the scope of supervision and inspection, with the exception of the Bushehr nuclear power plant.
At the conclusion of its report, the International Atomic Energy Agency stressed the need to resume verification and inspection activities inside Iranian territory without any delay, to determine the nature of the ongoing activities at the Isfahan facility and other sites.
