The World Food Program says it has halted operations at more than half of its food processing plants in North Korea amid ever-decreasing foreign food aid to the Stalinist nation.

In an emergency report on Monday, the U.N. body announced that only nine out of its nineteen processing plants in the North were in operation as of last week due to a lack of materials.

The report said the amount of food processed at the plants during the first week of June had produced only sixty-three percent of the week's required amount.

It also warned that if things continued at this rate, it would have no choice but to halt its supply of biscuits to the North's elementary schools in September.