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.

The Iranian and Israeli strikes mark the most sustained, direct attacks ever between the two rivals. Three people were killed in Israel and at least 78 in Iran, officials said.

Iran launched three retaliatory waves of missiles at targets in Israel on June 13, as Israelis rode out the attacks in bomb shelters and world leaders discussed the deepening conflict. Plumes of smoke rose over central Tel Aviv and at least one building was hit and set ablaze.