Palestinians receive food and humanitarian aid as Israeli airstrikes continue in Rafah, Gaza on December 19, 2023. 

Editor's note: This story contains a photograph with graphic content.

More than half a million people in Gaza — a quarter of the population — are starving, according to a report Thursday by the U.N. and other agencies that highlights the humanitarian crisis caused by Israel's bombardment and siege on the territory in response to Hamas' Oct. 7 attack.