A 7-year-old Israeli Bedouin girl injured overnight during Iran’s missile and drone assault on Israel underwent surgery Sunday for a serious head wound and remains in critical condition, according to Israel’s Soroka Medical Center.

The girl, Amina Alhasoni, from a Bedouin town near the southern Israeli city of Arad, was wounded by shrapnel from an intercepted ballistic missile that fell on her family’s home at around 2 a.m.

The home is not equipped with a shelter, and the girl was sleeping in her bedroom when the shrapnel hit. Her father, Mohammed, said that the family had heard air-raid sirens shortly before the missile fragment hit.

Iran fired over 300 missiles and drones at Israel in the unprecedented overnight attack.