Iran and Israel continued on Sunday their aerial attacks, which began Friday with a series of Israeli strikes on Iran.

Explosions have been seen over Tel Aviv and Jerusalem as the country faces yet another barrage of missiles from Iran. It comes after explosions were reported in central Tehran, as attacks continue between Iran and Israel.

Israel has launched a series of strikes against Iran, targeting the country’s nuclear program and other military infrastructure. Iran has launched its own strikes in retaliation.

Israel and Iran launched fresh attacks, killing and wounding civilians and raising concerns of a broader regional conflict.

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

Israel’s military said the strikes also killed nine senior scientists and experts involved in Iran’s nuclear program. Iran’s U.N. ambassador said 78 people were killed and more than 320 wounded. Iran retaliated by launching waves of drones and ballistic missiles at Israel,