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The U.N. nuclear watchdog said it has been unable to confirm whether Iran halted uranium enrichment after facilities were damaged in a June war involving Israel and the United States, according to a confidential report seen by The Associated Press. The International Atomic Energy Agency said Iran did not provide access to the nuclear sites affected by the strikes, limiting what the agency can verify about enrichment activity and enriched-uranium inventories.

In its report, the IAEA said it “cannot verify whether Iran has suspended all enrichment-related activities” and “cannot provide any information on the current size, composition or whereabouts of the stockpile of enriched uranium in Iran” at the affected facilities. The agency also warned that the “loss of continuity of knowledge … needs to be addressed with the utmost urgency,” highlighting the verification gap created by the access lapse.

The report comes as the IAEA faces a safeguards challenge tied to the post-strike situation at Iran’s declared enrichment sites. Iran has four declared enrichment facilities, but the IAEA said its inability to enter the bombed or affected locations prevented it from confirming the current state of the enriched-uranium stockpile and related enrichment activity there.

The IAEA reported that it could not rely on direct monitoring at those affected sites, while it continued to track activity using other methods. It said it used commercially available satellite imagery to observe activity around nuclear sites, including reporting “regular vehicular activity” around the entrance to a tunnel complex used to store enriched material at Isfahan, about 350 kilometers (215 miles) southeast of Tehran. The report noted that Isfahan was struck by both Israel and the United States in June.

The IAEA said it also observed activity at the enrichment sites in Natanz and Fordow, but added that without access it was “not possible for the Agency to confirm the nature and the purpose of the activities.” The report therefore treated the observations as evidence of activity rather than confirmed enrichment operations or the specific objectives of what was happening on the ground.

Iran has long said its nuclear program is peaceful, while the IAEA and Western nations have said Tehran had an organized nuclear weapons program up until 2003. The United States is seeking a deal to limit Iran’s nuclear program and ensure it does not develop nuclear weapons, but the IAEA report underscored that verification remains constrained by the current access situation.

The IAEA said Iran told it in a letter dated Feb. 2 that normal safeguards were “legally untenable and materially impracticable,” citing threats and “acts of aggression.” The report also said Iran provided access to IAEA inspectors “to each of the unaffected nuclear facilities at least once” since June 2025, with the exception of a power plant at Karun that is under construction.

In the absence of current site access, the IAEA noted that it maintains an earlier-reported picture of Iran’s enriched-uranium holdings. The report said Iran maintains a stockpile of 440.9 kilograms (972 pounds) of uranium enriched up to 60% purity—described in the report as a short technical step away from weapons-grade levels of 90%—and said the amount could allow Iran to build as many as 10 nuclear bombs if it chose to weaponize. IAEA director general Rafael Grossi also told the AP that the stockpile figures do not mean Iran has such a weapon.

The report said the IAEA’s verification problem has a timing component: highly enriched material should normally be verified every month, according to the IAEA’s guidelines. The agency said that in June, Iran’s access suspension after the strikes left it unable to confirm what is happening at the bombed facilities and where enriched uranium is located at those sites.

The IAEA also described its own role in ongoing diplomacy, saying Grossi attended negotiations between the United States and Iran in Geneva on Feb. 17 and Feb. 26 in which he “provided advice” on the verification of Iran’s nuclear program. The IAEA said the negotiations were “ongoing,” and described Thursday’s talks, the third round this year under Omani mediation, as ending without a deal.

An Omani official said lower-level technical talks would continue next week in Vienna, the location of the IAEA, and described the agency as likely to be critical to any eventual deal. Iran has said it is not pursuing weapons and has resisted demands that it halt uranium enrichment or hand over its stockpile of highly enriched uranium.