Israel’s military headquarters were struck after Iran’s Islamic Republic unleashed a barrage of missiles on central Tel Aviv late Friday night, causing “significant damage” to the Jewish state’s equivalent of the Pentagon.

Israeli citizens were ordered to head to bomb shelters on Friday night amid retaliatory missile strikes from Iran.

Aerial attacks between Israel and Iran continued overnight into Monday, marking a fourth day of strikes following Israel's Friday attack. That surprise strike hit the heart of Iran's nuclear program, killing several nuclear scientists as well as high-ranking military leaders, according to Israeli officials.