Israel closed all crossings into Gaza indefinitely when it attacked Iran, imposing a siege that has already pushed up food prices and threatens to plunge 2 million people into a new hunger crisis.

After more than two years of war, and with Israeli forces in control of about 60% of the territory, almost all of Gaza’s food must be brought in.

Humanitarian groups feeding much of the population say the supplies they had on Saturday, when the war began, will only last a few more days.