About 300,000 children have fled from Lebanon to Syria in the past seven weeks to seek safety from the worsening conflict, only to arrive in a country where humanitarian needs have never been higher, Save the Children organisation said.
Many children are travelling alone, separated from parents or families, and are at risk of abuse, food shortages and illness as winter looms.
The UN estimates that approximately 60 per cent of the people being displaced from Lebanon to Syria are children and adolescents with many arriving in desperate need of medical care, shelter, food and water.