Gaza health officials and the ambulance service say at least 25 people were killed by Israeli airstrikes and gunshots overnight as ceasefire talks appear to have stalled and Palestinians in Gaza are facing famine.

The United Nations and experts say that Palestinians in Gaza are at risk of famine, with reports of increasing numbers of people dying from causes related to malnutrition

"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.

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,

Prime Minister Mark Carney is calling for Israel’s control of aid distribution to be replaced amid reports of mass starvation in Gaza.

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 U.N. and international aid agencies resumed trucking humanitarian aid to Palestinians in Gaza, according to Israel, but the U.N. said it was far too little.

Gazans are in desperate need of essentials after more than 21 months of war, but efforts to get aid into the Palestinian territory - and to its hungry residents - face major obstacles.