US aid cuts have forced the UN children's agency UNICEF to suspend or scale back many programs in Lebanon, with more than half of children under the age of two experiencing severe food poverty in the country's east, an official said on Friday.

"We have been forced to suspend or cut back or drastically reduce many of our programs and that includes nutrition programs," UNICEF's deputy representative in Lebanon, Ettie Higgins, told reporters in Geneva via video link from Beirut.