IAEA Report: No Access to Iran's Isfahan Nuclear Site

The International Atomic Energy Agency says it has no way of knowing what is happening at an Iranian nuclear facility in Isfahan, where its inspectors have been denied access since June 2025, according to a confidential report from the UN nuclear watchdog.

The report, sent by the agency's leadership, states that the IAEA lacks sufficient information to determine what is taking place at the site, whether it contains nuclear material, or what its status is under the international inspection regime.

"The agency does not know the exact location of the facility, its status in the context of the safeguards regime, or whether it contains nuclear material," the report says. It adds that the agency is increasingly concerned that Iran has not allowed it to inspect the facility or review its engineering plans.

The central worry is that Iran may be pressing ahead with nuclear work out of inspectors' sight. Tehran sharply curtailed IAEA access to its facilities after the war and the strikes carried out by Israel and the United States. The lack of access to the Isfahan site compounds existing uncertainty over Iran's stockpile of enriched uranium.

According to the figures in the report, Iran holds hundreds of kilograms of uranium enriched to 60%. Since the war, however, IAEA inspectors have struggled to track where the material is and in what condition. That enrichment level is far above the cap set in the 2015 nuclear deal, under which Iran committed to limit enrichment to 3.67% and its stockpile to 300 kilograms.

Iran prepares for confrontation (Photo: AI-generated image)

Israel and the United States struck several Iranian nuclear facilities during the war. However, the extent of the damage, and Iran's ability to restore its activity, remain unclear. Kikar HaShabbat reported that a Western intelligence assessment published this week found the Iranian regime has managed to preserve extensive military potential and rebuild a significant share of its production capabilities.

Iran, for its part, continues to make the resumption of full cooperation conditional on its demands regarding how the inspection regime is implemented. The report does not determine that Iran has resumed uranium enrichment at the Isfahan facility. It does, however, highlight the widening gap between what inspectors know and what is happening on the ground, a situation that leaves activity at Isfahan without a clear answer.