Iran has two known underground nuclear enrichment sites, the one Israel attacked on the first day of its assault at Natanz, and another at Fordo. Both sit south of Tehran in central Iran, but Fordo has long been the Iranian nuclear facility of most concern to international monitors and experts.

European leaders earlier joined the U.S., Canada and Japan at the G-7 summit to declare that Israel has a right to defend itself and agreed that Iran should never be allowed to build nuclear weapons.

The attack on Monday evening came during a live broadcast.