Iran launched 220 ballistic missiles at Israel on Tuesday night, according to a U.S. official. The attack was in protest of Israel's recent operations against the Tehran-backed Hezbollah militant group in Lebanon, including the assassination of its leader Hassan Nasrallah on Sept. 27.

Israel appeared to label much of northern Gaza as an evacuation zone and in Lebanon, Israeli airstrikes targeted Hezbollah strongholds, as the region also braced for Israel to hit back at Iran.