Israel Prime Minister Benjamin Netanyahu issued a warning Monday to Iran, which backs Hezbollah and Hamas. “There is nowhere in the Middle East Israel cannot reach," Netanyahu said, just days after an airstrike south of Beirut killed the leader of the Lebanese Hezbollah group, which is backed by Tehran.

Iran fired a salvo of ballistic missiles at Israel on Tuesday in retaliation for Israel's campaign against Tehran's Hezbollah allies in Lebanon. Alarms sounded across Israel and explosions could be heard in Jerusalem and the Jordan River valley after Israelis piled into bomb shelters.