Palestinians said the school was sheltering displaced people but the Israeli army said it was being used as a command center by Hamas.

Palestinian authorities say 15 people were killed overnight in the Gaza Strip in multiple Israeli attacks. An airstrike early Friday morning in Gaza City hit a family home, killing six people including an unknown number of children, Gaza’s Civil Defense said. Another person was killed in Gaza City when a strike hit a group of people on a street.

An Israeli air strike on a school in Gaza City has killed at least 22 Palestinians, mostly women and children, according to Gaza's Hamas-run health ministry.

Palestinian officials say Israeli airstrikes killed 16 people Monday in the Gaza Strip, including five women and four children. Israel says it only targets militants and accuses Hamas and other armed groups of endangering civilians by operating in residential areas.

Palestinians said an Israeli strike killed at least 22 people in a school sheltering displaced people in southern Gaza City on Saturday, while the Israeli military said the attack targeted a command centre of militant group Hamas.

At least 22 people were killed in an Israeli attack on a former school building in Gaza City, Palestinian authorities said on Saturday. At least 30 people were injured, including women and children, the health authority in Gaza said.