IAEA Director General Rafael Grossi was speaking at a meeting of its board of governors on Monday, which was convened in response to attacks by the United States on Iranian nuclear facilities.

He presented the view, while adding that no one, including his organization, is in a position to have fully assessed the underground damage at the plant.

Grossi noted that Iran has informed the IAEA that there was no increase in off-site radiation levels at three nuclear sites struck by US forces.

Grossi stressed that what is important is the 400 kilograms of uranium that Iran enriched to 60 percent. He called for a cessation of hostilities to allow IAEA inspectors to “go back to Iranian nuclear sites and account for the stockpiles of uranium.”

Grossi also revealed that he received a letter from Iranian Foreign Minister Abbas Araghchi on June 13, telling him that Iran will “adopt special measures to protect our nuclear equipment and materials.”

Grossi said he told Araghchi that any transfer of nuclear material from a safeguarded facility to another location in Iran must be declared to the IAEA.