Israeli gunfire and airstrikes killed more than 50 Palestinians in Gaza on Saturday, including some who were waiting overnight for aid, according to local health officials, continuing a pattern that has drawn international criticism as the country’s “drip-feeding of aid” into the enclave continues to claim lives.

Israel has long restricted or completely blocked aid to Gaza on the argument that Hamas steals it to use as a weapon of control over the population.

Médecins Sans Frontières (MSF) says the air drops "might help" but notes that the "most vulnerable" in Gaza would still struggle to access essential supplies.

United Nations aid chief Tom Fletcher has demanded that Israel provide evidence for its accusations that staff with the U.N. Office for the Coordination of Humanitarian Affairs were affiliated with Palestinian militants Hamas,

Israel’s military took journalists on Thursday to the Gaza side of the Kerem Shalom crossing to show what they claim is humanitarian aid awaiting collection.

"The humanitarian catastrophe that we are witnessing in Gaza must end now," a joint statement from the three countries reads.

Plus: Hundreds of people have been killed in recent weeks trying to reach food, mostly in mass shootings by Israeli soldiers.