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 and Israel targeted each other with airstrikes early on Saturday after Israel launched its biggest-ever offensive against its longtime foe in a bid to prevent it from developing a nuclear weapon.

Iran launched retaliatory airstrikes at Israel on Friday night, with explosions heard in Jerusalem and Tel Aviv, the country's two biggest cities, following Israel's biggest-ever military strike against its longstanding enemy.