Throughout the day on Friday, Israel carried out wave upon wave of strikes on nuclear facilities and missile bases in Iran. The Natanz uranium enrichment site and the nuclear facility in Isfahan have been hit and top military leaders have been assassinated - as have nuclear scientists.

Iranians close to military sites "should immediately leave these areas and not return until further notice," the Israeli military said on Sunday.

Smoke and flames filled the sky over Tehran as Israel struck oil and gas facilities in the Iranian capital and targeted more nuclear facilities during attacks that carried on into Sunday after starting two days earlier.

The strikes came after the Israeli military said it had carried out fresh strikes on Iran nuclear infrastructure sites.

Israel's military said the air force had concluded a wave of overnight strikes targeting air defenses in the area of Tehran. "We damaged—and will continue to damage—strategic sites and enemy sources of knowledge,

Maj. Gen. Yadlin, who flew in the 1981 Osirak reactor strike, explains why Israel's current operation against Iran represents a complex, multi-week campaign.

President Donald Trump told Reuters in a phone interview on Friday that it was unclear if Iran still has a nuclear program following Israeli strikes on the country. Trump told Reuters the U.S. still has nuclear talks planned with Iran on Sunday but that he is not sure if they will still take place.