The agency has thousands of pallets of aid waiting to enter the enclave, said Edouard Beigbeder, Regional Director for the Middle East and North Africa.

“Most of this aid is lifesaving – yet instead of saving lives, it is sitting in storage,” he said.

“It must be allowed in immediately. This is not a choice or charity; it is an obligation under international law.”

UNICEF warned that children receiving malnutrition treatment are at serious risk as 21 treatment centres, representing 15 per cent of total outpatient facilities, have closed due to displacement orders or bombardments.

Furthermore, only enough ready-to-use infant formula (RUIF) is currently available for 400 children for a month. Estimates indicate that nearly 10,000 infants under six months old require supplementary feeding, which could force families to use alternatives mixed with unsafe water.