IAEA raises concern over uninspected Iranian enrichment plant

International Atomic Energy Agency said in a confidential quarterly report on Friday, Nov. 13, 2026, that it is “increasingly concerned” about one underground uranium-enrichment plant at Isfahan in Iran.

The concern matters because the UN nuclear watchdog said Iran declared the Isfahan Fuel Enrichment Plant last year but has not allowed IAEA inspectors to visit it, limiting safeguards verification.

“The Agency does not know IFEP's exact location, status for safeguards purposes, or whether it contains nuclear material,” the IAEA said in the report to member states, according to Reuters.

Safeguards are the IAEA’s inspection and accounting system for checking whether nuclear material remains in declared peaceful use. Uranium enrichment is a sensitive part of the nuclear fuel cycle because the same technology can produce material at different levels of enrichment.

The report did not say whether the site currently holds nuclear material. It also did not disclose any inspection date, Iranian response or next step by the IAEA Board of Governors.

Source: Reuters report published by The Jerusalem Post, Nov. 13, 2026