Months of warnings have fallen on deaf ears and famine is now a reality in Gaza, the chief of UN agency for Palestinian refugees (UNRWA) said on Friday, as a UN body of food security experts confirmed extreme scarcity of food in the enclave.

At least 100 children in Gaza have died from malnutrition and hunger, prompting humanitarians to underscore the need to speed up medical evacuations from the enclave while also allowing more food to enter.

The head of the U.N. Palestinian refugee agency on Thursday voiced concern that children suffering from malnutrition in Gaza will die if emergency provisions are not immediately put in place during Israel's Gaza City military operation.