IAEA Report Expresses Grave Concern Over Secret Iranian Nuclear Facility

The International Atomic Energy Agency (IAEA) has voiced deep concern in a confidential report regarding a nuclear facility in Iran's Isfahan region. According to the report, obtained by Reuters, Iran declared an underground uranium enrichment facility at the site but has since denied the IAEA access for inspections. The agency stated it is unaware of the facility's precise location, its purpose, or whether it contains nuclear material. Iran initially reported the facility to the IAEA on June 12, 2025. However, it has not permitted inspectors to revisit any of its nuclear sites that were reportedly damaged or destroyed by Israeli and U.S. strikes in June of the previous year. These strikes are believed to have heavily impacted other uranium enrichment facilities, which are central to Iran's nuclear program. Diplomats estimate the facility is located within a network of tunnels in Isfahan, though its exact location and function remain unknown. The IAEA had planned to inspect the facility on June 13, 2025, but the subsequent bombing campaign made this impossible. IAEA Director General Rafael Grossi stated in March that the agency estimates a significant portion of Iran's highly enriched uranium is stored in the Isfahan tunnel complex. The report reiterates the IAEA's demand for Iran to provide information on its enrichment facilities and its stockpile of uranium, which is nearing weapons-grade. Iran is also required to allow inspectors access to bombed sites to account for the enriched uranium. The report concludes that the lack of information and access to verify nuclear material is a serious concern for nuclear proliferation and must be urgently addressed.