At least 500 people have been killed as a result of an Israeli airstrike on the al-Ahli Hospital in Gaza City, the Hamas-run Health Ministry claimed. Hundreds of victims were still under the rubble, it said.
If confirmed, the attack on the al-Ahli Hospital would be by far the deadliest Israeli airstrike in five wars fought since 2008. The Israeli military says it is looking into the report.
Several hospitals in Gaza City have become refuges for hundreds of people, hoping they would be spared bombardment after Israel ordered all city residents and surrounding areas to evacuate to the south of the Gaza Strip.
Palestinian President Mahmoud Abbas declared three days of mourning following a deadly air strike on a hospital in Gaza, state media reported.
Around 3,000 people have been killed in Israeli air strikes across the densely-populated enclave since the war erupted on October 7.
More than 1,400 people in Israel have been killed, the majority gunned down by Hamas militants who crossed from Gaza and attacked border communities.