Save the Children aid group says four million Syrians more than half of them children are unable to produce or buy enough food.
Thousands are living in battle zones around Syria's major cities, cut off from access all but the bare minimum foodstuffs needed to survive, the US-based group said in a report on the state of hunger in Syria.
The dramatic appeal was released yesterday. It says one in 20 children in areas around Damascus is severely malnourished.