The United Nations has been forced to cut the size of food parcels for those left hungry by Syria's civil war by a fifth because of a shortage of funds from donors, a senior official has said.
Nevertheless, the United Nations' World Food Programme managed to get food to a record 4.1m people inside Syria last month, just short of its target of 4.2m, WFP deputy executive director Amir Abdulla told a news conference on Monday.
As the humanitarian crisis within Syria intensifies, its neighbours are also groaning under the strain of an exodus of refugees that now totals around 3m, UN High Commissioner for Refugees Antonio Guterres said.
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"We know that this tragedy, together with the tragedy of the people displaced inside the country, 6.5m, now shows that almost half of the Syrian population is displaced."
Donor countries pledged $2.3bn for aid agencies helping Syria at a conference in Kuwait in January, but only $1.1bn has been received so far, including $250m handed over by Kuwait on Monday, UN officials said.
The delay meant that the standard family food basket for five people, which includes rice, bulgur wheat, pasta, pulses, vegetable oil, sugar, salt, and wheat flour, had to be cut by 20 percent in March to allow more people to be fed, WFP said.
Guterres's office needs more than $1.6bn to fund fully its operations this year in response to the crisis, but has received only 22 percent to date, a UNHCR statement said.
Burden on neighbouring countries
Some 2.6m Syrian refugees have registered in neighbouring countries, while hundreds of thousands more have crossed borders but not requested international assistance.
Guterres pointed to the huge burden this was imposing on Syria's neighbours. In Lebanon, the more than a million registered refugees are equal to almost a quarter of the resident population.
At least one Syrian refugee was killed in Jordan's sprawling Zaatari camp when hundreds of refugees clashed with security forces, residents said on Saturday.
"Let us not forget that in Jordan, in Lebanon and other countries, we have more and more people unemployed, we have more and more people with lower salaries because of the competition in the labour market, we have prices rising, rents rising - and that the Syria crisis is having a dramatic impact on the economies and the societies of the neighbouring countries," Guterres said.
"And so it is very easy to trigger tension, and it is very important to do everything we can to better support both the refugee community and the host communities that generously are receiving them."