A Palestinian diplomat has told the United Nations’ top court that Israel is killing and displacing civilians and targeting aid workers in Gaza in a “man-made catastrophe of unprecedented proportions.

Israel will face accusations of breaking international law by refusing to let aid into the Gaza Strip when dozens of nations present arguments at the International Court of Justice during a week of hearings starting in The Hague on Monday.

Israel has entirely cut off all supplies to the Gaza Strip’s 2.3 million population, and food stored during a truce earlier this year has all but ran out