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.

DEIR AL BALAH, Gaza Strip — Aid groups are raising new alarm over Israel’s blockade of the war-ravaged Gaza Strip, where it has barred entry of all food and other goods for more than six weeks. Thousands of children have become malnourished, and most people are barely eating one meal a day as stocks dwindle, the United Nations says.

The Israeli-Palestinian conflict will again be on the agenda of the ICJ this week. Forty countries are expected in The Hague to defend their positions on humanitarian access to Gaza, where Israel has imposed a blockade since March 2,