Sirens sounded in Israel as Iran launched dozens of ballistic missiles in retaliation for Israel's strikes on its nuclear facilities.

"This confrontation will not end with last night's limited actions and Iran's strikes will continue, and this action will be very painful and regrettable for the aggressors," Fars reported, citing senior military officials.

The death toll grew Sunday as Israel and Iran exchanged missile attacks for a third consecutive day, with Israel warning that worse is to come. Israel targeted Iran’s Defense Ministry headquarters in Tehran and sites it alleged were associated with Iran’s nuclear program,

Maps show the Iranian sites Israel targeted with airstrikes Friday, including a key nuclear facility in Natanz.