The World Food Program says its food stocks in the Gaza Strip have run out under Israel’s nearly 8-week-old blockade, ending a main source of sustenance for hundreds of thousands of Palestinians in the territory.

The WFP said in a statement that it delivered the last of its stocks to charity kitchens that it supports around Gaza. It said those kitchens are expected to run out of food in the coming days, reports AP.

Some 80% of Gaza’s population of more than 2 million relies primarily on charity kitchens for food, because other sources have shut down under Israel’s blockade, according to the UN.

The WFP has been supporting 47 kitchens that distribute 644,000 hot meals a day, said WFP spokesperson Abeer Etefa.

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It was not immediately clear how many kitchens would still be operating in Gaza if those shut down. But Etefa said the WFP-backed kitchens are the major ones in Gaza.

Israel cut off entry of all food, fuel, medicine and other supplies to Gaza on March 2 and then resumed its bombardment and ground offensives two weeks later, shattering a two-month ceasefire with Hamas.

It says the moves aim to pressure Hamas to release hostages it still holds. Rights groups have called the blockade a “starvation tactic” and a potential war crime.

Israel has said Gaza has enough supplies after a surge of aid entered during the ceasefire and accuses Hamas of diverting aid for its purposes. Humanitarian workers deny there is significant diversion, saying the UN strictly monitors distribution.

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They say the aid flow during the ceasefire was barely enough to cover the immense needs from throughout the war when only a trickle of supplies got in.

With no new goods entering Gaza, many foods have disappeared from markets, including meat, eggs, fruits, dairy products and many vegetables. Prices for what remains have risen dramatically, becoming unaffordable for much of the population. Most families rely heavily on canned goods.