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

BEIRUT — Iran and Israel traded air raids and ballistic missile barrages overnight and into the evening Sunday, with neither side showing any inclination to back down from an escalating grudge match between the two longtime enemies.

Iran has launched a new wave of missile attacks on Israel, triggering air raid sirens across the country as emergency services reported projectiles striking and shrapnel falling in Israel’s north and center,