A UN plan to provide 836 million US dollars (£525 million) in emergency aid to Syrians battered by their nation's civil war has run into funding problems despite an additional US donation of 34 million dollars (£21 million).
The wide gap - about 50% - between refugee needs and donor pledges added to the gloom at a UN gathering in Geneva of hundreds of aid officials and diplomats.
Before the meeting, the UN said it had collected just 35% of the 488 million dollars (£306 million) it says is needed for refugees and only 45% of the 348 million dollars (£218 million) it says is needed for general humanitarian aid.
That and the lack of access for aid groups was making the goal of reaching the 2.5 million Syrians who need help and the more than 400,000 refugees who have fled the country seem impossible.
"There is more violence, there is more human suffering, there is more displacement and more losses, both physical and economic ... civilian Syrians continue to pay the price of this conflict," said Radhouane Nouicer, the UN's regional aid coordinator for Syria.
Mr Nouicer told reporters at the end of the closed-door meeting that the suffering among Syrians will just keep growing - and reaching them will continue to be difficult - as long as fighters "do not respect the neutrality and the impartiality" of aid workers.
In the last 24 hours alone, Syria's civil war has driven 11,000 people to flee to neighbouring countries, including 9,000 refugees who went to Turkey, officials said. Another 1,000 each went to Jordan and Lebanon.
"I'm afraid that the news we have to report on the humanitarian front was still very sad," said Panos Moumtzis, the UN's refugee agency regional coordinator. "This indicates a lack of any political solution to the crisis."
Activists say the civil war has killed more than 36,000 people since an uprising begin in March 2011 against president Bashar Assad's regime.