AMMAN, Jordan — The World Food Program announced new cuts Friday in food aid for Syrian refugees in Jordan, highlighting a growing funding crisis of international agencies helping millions displaced by Syria’s conflict.

A last-minute U.S. donation of $65 million had kept food aid going, but funding in Jordan is not secured beyond August, even at the reduced level, the WFP said.

“This timely contribution has helped us avoid major cuts, but unless other donors step up to the plate, it will be only a matter of months before we face the same situation again,” said WFP’s regional director Muhannad Hadi.

Since the 2011 start of the Syrian conflict, more than 4 million Syrians have fled to neighbouring countries. Jordan hosts 629,000 Syrian refugees, including about 100,000 housed in refugee camps and more than half a million living in Jordanian communities.

Largely unable to work legally, most urban refugees live in poverty. About 440,000 have been receiving WFP food vouchers, a mainstay of support, but the agency has had to reduce food aid repeatedly in recent months.

In August, food aid for the most vulnerable among them voucher recipients, or about 200,000 people, will drop from $28 to $14 per person per month and for the rest from $14 to $7, the WPF said.

The agency has expressed concern that deepening poverty will prompt more refugees to pull sons out of school and send them to work or marry off daughters in their teens.

One refugee, speaking before the announcement of aid cuts, said he fears his family of eight will be evicted from their apartment in a poor area of the Jordanian capital of Amman because he can’t pay the rent.

“I don’t know where to go,” said the man, who gave a nickname, Abu Udai, amid concern for relatives remaining in Syria. “I can’t find a job, and work is illegal here.”

Urban refugees unable to make ends meet may face a choice between moving to a refugee camp, where aid levels are higher, or returning to Syria, despite the dangers.

The Zaatari refugee camp, established three years ago, is at full capacity and not taking any more newcomers, and the only option would be the newer, Azraq camp.

The WFP said those living in the camps will continue to receive $28 per person per month. It said refugees in Lebanon will continue to receive $13.50 per month, the same level as in July.

The agency said it immediately needs $168 million to support refugees through October in the five main countries of the region that are hosting Syrian refugees.