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 case that Israel criticized as part of its “systematic persecution and delegitimization.

At least 29 Palestinians were killed Tuesday in Israeli airstrikes in the Gaza Strip as Tel Aviv continued an onslaught on the blockaded enclave, according to medics. Five Palestinians, including two children and an elderly man, were killed and others wounded when a drone bombed a tent sheltering displaced persons in Khan Younis in southern Gaza.

The United Nations criticized Israel for its ban on aid in hearings at the International Court of Justice. Israel did not send a legal delegation and rejected the proceedings as biased.