The UN’s nuclear watchdog has warned of potential radiological and chemical contamination at Iran’s Natanz nuclear facility following Israeli air strikes, Al Jazeera reported.

Rafael Grossi, head of the International Atomic Energy Agency (IAEA), expressed particular concern about uranium hexafluoride, a highly toxic chemical gas used in uranium enrichment. Uranium hexafluoride is volatile, corrosive, and can cause severe burns and respiratory damage if inhaled.

Grossi said that without immediate on-site inspections, the IAEA cannot accurately evaluate the extent of contamination or the risks posed to local populations and the environment.

“Without direct access, we cannot assess the true situation or provide necessary support,” he stated, stressing the urgent need to inspect the facility once conditions allow.

IAEA inspectors remain in Iran, waiting to gain safe entry to affected areas as tensions and damage assessments continue.