Israel and Iran exchange missile attacks for a third day; nuclear sites hit, death tolls rise, airspace shut, U.S. warns Tehran against retaliation.

Israel has launched blistering attacks on the heart of Iran’s nuclear and military structure, deploying warplanes and drones previously smuggled into the country to assault key facilities and kill top

Revolutionary Guards Commander Hossein Salami reported killed. Fears of war rise as nuclear talks stall. See Iranian facilities before and after.

Israel says preemptive airstrikes against Iran's nuclear sites are underway, and it is bracing to intercept a wave of drones launched by Iran in retaliation.

Iran and Israel exchanged more airstrikes overnight Friday and continuing into late Saturday after Israel mainly attacked Iranian nuclear and military targets two days ago. Though some missiles struck civilian populations,

Iran fired a new wave of missile attacks on Israel early today, killing at least eight people and injuring 70, authorities in Israel have said.Explosions rocked major Israeli cities, including Tel Aviv and the port city of Haifa.

The U.S. says it wasn't involved in the strikes on Iran, but three American officials told NBC News the U.S. is assisting in shooting down Iranian missiles and projectiles targeting Israel.

The Israeli military claims its campaign has eliminated high-value targets, including nine senior scientists, and severely damaged Iran’s nuclear infrastructure. Iranian authorities confirmed damage to four critical buildings at the Isfahan uranium conversion facility,

The death toll grew Sunday as Israel and Iran exchanged missile attacks for a third straight day, with Israel warning that worse is to come. Israel targeted Iran’s Defense Ministry headquarters in Tehran and sites it alleged were associated with Iran’s nuclear program,