Ukrainian officials have accused Russian forces of compromising safety by shelling the site of the plant, forcing power cuts during air strikes and flouting safety measures.
The International Atomic Energy Agency said it had located uranium particles at Iran’s underground Fordo site that were enriched to 83.7% purity.
The IAEA and Iran said they had agreed to make progress on various issues, including a long-stalled IAEA inquiry into uranium particles found at three undeclared sites in Iran.
Grossi's statements came after extended meetings with key officials in Iran over the weekend.
"Are we forbidden from defending ourselves? We are obviously permitted to do this," Prime Minister Benjamin Netanyahu told his cabinet in a televised speech Saturday night.
Iran is supposed to provide access to information, locations and people, suggesting a vast improvement after years of Iranian stonewalling.
Israeli Defense Minister Yoav Gallant to US Army General Mark Milley: US-Israel cooperation is needed to prevent a nuclear Iran.