Follow live updates as Iran retaliates after Israel strikes nuclear facilities. Stay informed with real-time news and developments.

Israel has issued an "urgent warning to Iranian citizens" to evacuate areas close to military sites after fresh exchanges of strikes between the two countries overnight raised fears of further escalation.

Iran launched dozens of ballistic missiles toward Israel on Friday night in retaliation for Israel's surprise attack early Friday. Israel struck at the heart of the Iran's nuclear program, killing several nuclear scientists as well as high-ranking military leaders, according to Israeli officials.

DUBAI, United Arab Emirates (AP) — Israel launched an expanded assault on Iran on Sunday, with direct strikes targeting its energy industry and Defense Ministry headquarters, while Tehran unleashed a fresh barrage of missiles blamed for the deaths of four people and injuries of many others.

Fresh explosions have been reported in the Iranian capital of Tehran late on Sunday local time after Iran's President warned of "more painful and crushing responses" to Israeli strikes.

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.