Exclusive video and images obtained by Al Jazeera show bodies piled up inside the Shadia Abu Ghazala School in al-Faluja area, west of the Jabalia refugee camp in northern Gaza.
The Israeli army says 10 of its soldiers, including a colonel who commanded a forward base for the Golani infantry brigade, were killed in the Gaza Strip on Tuesday.
The United Nations General Assembly has overwhelmingly passed a nonbinding resolution urging a humanitarian ceasefire in Gaza as the Israeli bombardment continues.
At least 18,412 Palestinians have been killed in Israeli attacks since October 7. The revised death toll in Israel stands at 1,147.