Health officials in Gaza say an Israeli strike on Nasser Hospital has killed at least 15 people, including 4 journalists.

Israeli Prime Minister Benjamin Netanyahu’s office said the strike on Nasser Hospital was a “tragic mishap” and that the military was investigating.

An Israeli strike hit a southern Gaza’s main hospital Monday, killing 15 people according to hospital records. The victims on the fourth floor of Nasser Hospital were killed when one missile hit and was followed in the same spot by another missile moments later as rescue crews arrived,