KHAN YOUNIS, Gaza Strip (AP) — Multiple airstrikes hit Gaza’s southern city of Khan Younis overnight into Thursday, killing more than 50 people in a second consecutive night of heavy bombing, while another airstrike in the north of the Palestinian territory left more than a dozen people dead, authorities said.

Hospitals and medics in the Gaza Strip say Israeli strikes across the Palestinian enclave killed at least 75 people.

Aid groups and U.N. investigations have accused Israel of aiming to destroy Gaza’s health infrastructure. Israel says it is forced to strike hospitals it says are used by Hamas for military purposes.