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UN Nuclear Watchdog Raises Alarm Over Uninspected Iranian Enrichment Facility

Inspectors remain barred from verifying nuclear materials at a secretive site in Isfahan.

2 sources3 min

1Escalating Inspection Deadlock

The UN nuclear watchdog has expressed deep concern regarding an uninspected uranium enrichment plant in Isfahan. Iran declared the facility on June 12, 2025, just one day before military strikes began. Despite initial agreements to allow access, inspectors have been denied entry to this and other sites impacted by the campaign.

2Unknown Facility Status

The agency currently lacks information regarding the exact location or operational status of the Isfahan Fuel Enrichment Plant. Officials remain uncertain whether the site contains nuclear material or if it remains functional following the June 2025 strikes. The lack of design plans further complicates the agency's ability to verify safety safeguards.

3Impact of Military Strikes

A 12-day military campaign by the US and Israel in June 2025 caused extensive damage to Iran's nuclear infrastructure. While surface-level structures at the Isfahan complex were heavily impacted, the condition of underground tunnel networks remains unclear. These tunnels are suspected to house significant quantities of Iran's highly enriched uranium stockpile.

4Erosion of 2015 Agreement

Under the 2015 nuclear deal, Iran was restricted to a 300kg stockpile of uranium enriched to 3.67% purity. Iran has since exceeded these limits, accumulating an estimated 441kg enriched to 60% purity before the June 2025 strikes. This level of enrichment is considered dangerously close to weapons-grade material by international observers.

5Restricted Access Patterns

Since the onset of the latest conflict, Iran has systematically restricted access to its nuclear sites. The agency reports that it has not been permitted to inspect any of the seven facilities damaged during the strikes. Currently, inspectors are only able to monitor 13 sites that remained unaffected by the military operations.

6Proliferation Security Concerns

The agency describes the current lack of transparency as a matter of serious proliferation concern. Officials emphasize that the situation requires urgent rectification to ensure nuclear materials are accounted for. The inability to verify the status of enriched uranium stocks prevents the agency from fulfilling its mandate regarding global nuclear safety.

7Conflicting Strategic Narratives

The US and Israel maintain that strikes on Iranian nuclear sites are necessary to prevent the development of weapons. Conversely, Iran consistently denies seeking nuclear weapons, asserting that its entire program is intended solely for peaceful civilian purposes. This fundamental disagreement continues to drive the ongoing cycle of regional military escalation.

8Future Verification Challenges

The agency's latest report reiterates the need for Iran to provide a full accounting of its enrichment plants and material stocks. Without access to the bombed sites or the new Isfahan facility, the agency cannot confirm the integrity of Iran's nuclear program. Future developments depend on restoring the inspection protocols lost last year.

Original article: BBC News – Middle East — UN Nuclear Watchdog Raises Alarm Over Uninspected Iranian Enrichment Facility