Iran launched multiple deadly waves of missiles and drones toward Israel into Saturday morning following Israel’s unprecedented strikes aimed at destroying Iran’s nuclear program and decapitating its military leadership.

Israel repeatedly struck Iran’s largest enrichment site at Natanz and at its Isfahan nuclear complex. But the extent of the damage to the country’s nuclear program—or Iran’s ability to race secretly toward a nuclear weapon—isn’t clear.

The two sides were scheduled to meet for a sixth round of negotiations on Sunday. Oman, which was set to host the talks, said on Saturday that this round had been canceled.