At least 73 Palestinians were killed in Israeli strikes that hit several houses at a town in the northern Gaza Strip, Hamas media said.
Medics said the air strikes targeted a multi-floor building in Beit Lahiya town and damaged several houses nearby.
The Hamas-run Gaza government media office also said several people were wounded and missing.
The Palestinian Health Ministry said Israeli strikes hit the upper floors of the Indonesian Hospital in Beit Lahiya, and forces opened fire at it, causing panic.
Israel's military said it was operating near the hospital and "there was no intentional fire directed at it."
Another Israeli official said the casualty numbers were likely exaggerated and did not match information gathered by Israel's military.