At least 17 Palestinians, including children, were killed on Thursday in an Israeli strike on a school in Nuseirat camp in the central part of the Gaza Strip, where people displaced by the fighting were sheltering, Nuseirat's Al-Awda hospital said.
The Israeli military said it had hit a Hamas command and control centre embedded in a compound formerly used as a school in Nuseirat.
Hopes that the killing of Hamas leader Yahya Sinwar might provide an opening for an end to the fighting have so far been disappointed despite an international chorus urging Israel to use the opportunity.
In the northern section of the enclave, where the area around the town of Jabalia has been the target of a weeks-long operation, the military said it had evacuated large numbers of people and detained more than 200 suspected militants.
"Instead of achieving a ceasefire, war has restarted in northern Gaza. We are being besieged, starved, and hunted by the occupation from the air and from tanks," one Jabalia
resident told Reuters via a chat app.