About half of Iran's uranium enriched to 60% is stored in an underground facility in Isfahan, which appears to have remained largely undamaged following US and Israeli strikes, IAEA Director General Rafael Grossi told journalists, Reuters reports.

"We believe there was just over 200 kg of uranium at 60% enrichment in Isfahan. The general understanding is that the material is still there," Grossi said, adding that a strike was carried out near one of the tunnels in Isfahan.