IAEA expresses concern over Iranian nuclear facilities as Tehran blocks inspections

The International Atomic Energy Agency (IAEA) has expressed profound concern regarding an undeclared underground uranium enrichment facility in Isfahan, Iran. In its latest quarterly report, the agency noted that it remains unable to monitor the status of the facility or determine if nuclear material is present, as Tehran has denied inspectors access since the site was first declared in June 2025.

Tehran has formally rejected requests for technical talks on resuming inspections, citing security concerns following the extensive U.S.-Israeli military operations in June 2025. These strikes damaged several key Iranian enrichment sites, and the IAEA reports that it can no longer verify that nuclear material has not been diverted from peaceful activities. With the exception of a recent visit to the Bushehr nuclear station, the Islamic Republic has effectively barred international oversight.

IAEA Director General Rafael Grossi has proposed a phased approach to rebuild confidence and facilitate future inspections. However, Iranian authorities remain firm in their refusal to cooperate under current conditions, leaving the international community without a clear picture of the country's nuclear capabilities or the integrity of its enrichment infrastructure.