More than 4,000 Syrian children have crossed borders into neighboring countries, such as Lebanon and Jordan without parents or adult relatives and without the protection of guardians, extraordinarily vulnerable to exploitation and abuse.

Of the 4,150 Syrian children identified and registered, at least 1,698 are in Lebanon.

Each of those children had witnessed, or been a victim of horrific levels of violence in Syria, adding that some children ran for their lives from the fighting, while others went to find relatives who had earlier left. Still others were being sent away to avoid conscription.

Most of them roam the streets of Beirut, or stand by intersections, begging drivers for help.