Iran has sealed underground facilities containing highly enriched uranium and mined access routes, according to US media reports. The move increases security around sensitive nuclear material and raises concerns for international monitors. Global powers, security agencies, and nuclear watchdogs could face greater challenges tracking Iran’s stockpiles.
CNN reported that Iran recently adopted extraordinary measures to protect its nuclear assets. Sources familiar with US intelligence assessments described tunnel collapses and mined entry points. As a result, reaching the stored uranium has become significantly more difficult and dangerous. The measures reportedly followed growing concerns about potential military action against the sites.
According to the report, nearly half a ton of highly enriched uranium is now harder to access. Intelligence sources believe much of the material remains inside damaged tunnels. These tunnels are located at the Isfahan nuclear facility in central Iran. However, officials suspect additional nuclear material may be stored elsewhere.
The reported actions come after discussions within the United States about securing Iran’s nuclear material. Media reports said US military planners examined possible options during May. However, officials reportedly delayed any operation because of major security risks. Since then, Iran has allegedly strengthened protections around key nuclear locations.
Meanwhile, international attention remains focused on Iran’s nuclear program and regional security. Analysts say the latest measures could complicate future inspections or military planning. Although the full extent of the fortifications remains unclear, intelligence officials believe security has increased substantially. The developments add another layer of uncertainty to ongoing concerns over Iran’s nuclear activities.