"Israel is genociding the Palestinians one neighbourhood at the time, one hospital at the time, one school at the time, one refugee camp at the time, one safe zone at the time," Albanese said on social media platform X.

Gaza's civil defence agency said Saturday an Israeli airstrike on a school housing displaced Palestinians killed 100 people, in one of the largest killings in the ongoing Israeli massacres during 10 months of war on the Strip.

Civil defence said three Israeli missiles hit the school in Gaza City while people performed dawn prayers.

"Their bodies were torn apart," civil defence spokesman Mahmoud Bassal told AFP. 

Hamas denounced the "dangerous escalation", which came after international mediators invited the warring sides to resume next Thursday's talks towards a long-sought ceasefire and captive-release deal.

Egypt slammed Tel Aviv, asserting that this is clear evidence of the lack of Israel's will to end this “fierce war,” the foreign ministry said in a statement.

Jordan's foreign ministry also said the timing of the school strike "is an indication of the Israeli government's efforts to obstruct and thwart these efforts."