The International Atomic Energy Agency warns that it has been unable to verify design details or conduct inspections at an underground nuclear facility in Isfahan. While Iran declared the enrichment plant in June 2025, a confidential report seen by media outlets says the agency has been blocked from the site and has not received the required design information questionnaires for the facility, known as IFEP.
The agency noted a broader lack of data on enriched uranium and restricted access to various facilities over the last year. IAEA officials stated that these gaps in oversight have created proliferation concerns that require immediate resolution.