Thousands of Afghan nationals, many of them unaccompanied children, make the arduous journey to Iran in search of work every year.
Most of them are forced to do so by a lack of economic opportunity.
The jobs that the children get are often dangerous, difficult, and illegal. Those caught working illegally are deported back to Afghanistan.
Children at risk
Deported children often find themselves housed in temporary transit camps along the border, alongside other unaccompanied children who've been displaced by insecurity.