The push to do a deal on the country’s nuclear program could be revived, even after the Israeli strikes scuppered the latest round of talks.

Israel and Iran traded fire for a third straight day on Sunday, with rising casualties and expanding targets marking a sharp escalation in the conflict between the longtime adversaries.

Israel on Sunday hit targets in Tehran, including the Defense Ministry and sites it claims are tied to Iran's nuclear program.

The United States is the main international backer of Israel, Iran's biggest regional foe. It is also a close ally of Sunni Gulf monarchies which for years pursued their own rivalry with the Islamic Republic, seeing it as their main regional threat.

Countries trade strikes as tensions grow over larger Middle East conflict - Iranian missiles struck an apartment building in the Galilee region, killing four people, as the countries exchanged fire

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.

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.

Iranian officials said on Friday that the United States "shall be held fully accountable" for its support of Israel after the nation took out key Iranian nuclear facilities and killed government leaders in a series of air strikes this week.