The Red Cross warned that the humanitarian response in Gaza was on the "verge of total collapse" after two months of Israel blocking aid to the war-torn Palestinian territory.
"Without an immediate resumption of aid deliveries, the International Committee of the Red Cross (ICRC) will not have access to the food, medicines, and life-saving supplies needed to sustain many of its programmes in Gaza," it said in a statement.
"Civilians in Gaza are facing an overwhelming daily struggle to survive the dangers of hostilities, cope with relentless displacement, and endure the consequences of being deprived of urgent humanitarian assistance," Pascal Hundt, ICRC Deputy Director of Operations said in a statement.
"This situation must not — and cannot — be allowed to escalate further."
ICRC stressed that under international humanitarian law, "Israel has an obligation to use all means available to ensure that the basic needs of the civilian population under its control are met".
"If the blockage continues, programmes such as the ICRC common kitchens — which often provide the only meal people receive each day — will only be able to operate for a few more weeks," it warned.