VIENNA — Iran has significantly expanded its stockpile of uranium enriched close to weapons-grade levels, defying global expectations and regulations. A confidential document from the United Nations’ nuclear oversight body has revealed this development, which has raised concerns internationally.

According to findings released by the International Atomic Energy Agency (IAEA), as of October 26, Iran holds 182.3 kilograms (401.9 pounds) of uranium enriched to 60% purity. This marks an increase of 17.6 kilograms (38.8 pounds) since the agency’s last update in August.

Uranium enriched to 60% is only a small technical adjustment away from reaching the weapons-grade threshold of 90%. Furthermore, the IAEA’s quarterly report also indicated that Iran’s total stockpile of enriched uranium has reached 6,604.4 kilograms (14,560 pounds). This represents an increase of 852.6 kilograms (1,879.6 pounds) since August. The IAEA estimates that approximately 42 kilograms (92.5 pounds) of 60%-enriched uranium could theoretically be sufficient to produce a single atomic weapon if further enriched to the 90% level.

These developments come amidst ongoing tensions and negotiations concerning Iran’s nuclear program, prompting heightened scrutiny from the international community about its intentions and compliance with nuclear agreements.