Syria Grants IAEA Access to Deir ez-Zor Site, Opening Assad-Era Nuclear Program to UN Probe

For nearly two decades, the ruins of the Al-Kibar facility in Syria's eastern Deir ez-Zor province stood as a monument to unresolved proliferation fears and regional conflict. Destroyed by Israeli fighter jets in 2007, the undeclared site remained largely off-limits to international inspectors under the government of Bashar al-Assad. Now, the transitional government that replaced Assad has voluntarily opened the site to the International Atomic Energy Agency (IAEA), triggering a new diplomatic dispute over what to do with the tons of nuclear materials discovered there.[1][3]

On Tuesday, IAEA Director General Rafael Mariano Grossi and Syrian Foreign Minister Asaad Hassan al-Shaibani held a joint press conference in Damascus to announce the most significant advance in cooperation between Syria and the UN nuclear watchdog in 18 years. Grossi confirmed that his team had gained access to the Deir ez-Zor site and a second related location, where they are currently conducting comprehensive excavation and exploration work.[1][5][8]

The transitional government, led by President Ahmed al-Sharaa, framed the disclosure as a sovereign decision aimed at transparency and international reintegration. Al-Shaibani stated that Damascus had officially notified the IAEA on July 17 about the presence of nuclear materials left by the former regime. He emphasized that the materials do not pose a risk and asserted Syria's legal right to retain them for future peaceful civilian energy use.[2][4][6]

Grossi praised the "courageous decision" by the new Syrian authorities to report the undisclosed site. He confirmed that the agency will account for the materials and place them under the international safeguards system. Joint efforts between Syrian and IAEA experts are now underway to safely store the inventory, ensuring that the country's nuclear activities are definitively separated from any weapons program.[1][5][8]

The discovery of the material has alarmed Israeli and American officials, who view any residual nuclear infrastructure in Syria as an unacceptable risk. Axios previously reported that Washington and the IAEA had reached an understanding with Israel to physically remove the nuclear material from the clandestine site—a location Israeli officials referred to as "Site 99."[3]

The historical context of the Deir ez-Zor site heavily influences the current diplomatic standoff. Also known as Al-Kibar, the facility was suspected of housing a nuclear reactor built with North Korean assistance before it was destroyed in Israel's Operation Orchard in September 2007. The Assad government consistently denied the facility's nuclear nature, but the IAEA discovered uranium particles there during a limited inspection in 2008. The site remained closed to inspectors until the recent change in government.[3][7]

The stakes of this disclosure extend far beyond the borders of Deir ez-Zor. The standoff highlights the broader challenge of managing the Assad regime's legacy. While the new government in Damascus seeks to use cooperation with the IAEA to legitimize its standing and shed the pariah status of its predecessor, regional neighbors remain deeply skeptical of leaving nuclear material in a country still recovering from a devastating civil war.[2][6]

The technical realities of securing the material add another layer of complexity. The IAEA must now catalog the exact composition and quantity of the legacy materials, establishing a baseline inventory that can be monitored continuously. This process requires establishing secure storage facilities within Syria that meet international standards, a significant logistical hurdle in a nation where infrastructure has been severely degraded by years of conflict.[4][7]

For now, the material remains in Syrian national custody, subject to IAEA guarantees. Grossi noted that turning a page does not mean forgetting the past, indicating that the agency's technical assessments will continue. The ultimate fate of the Deir ez-Zor stockpile will likely depend on whether the international community accepts the transitional government's assurances or backs the US-Israeli push for complete extraction.[3][4]