These children were abandoned by their parents when they tried to enter the country illegally.
Link: https://www.google.com/search?q=child+abandonment&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjO3e-GlN7bAhUKZawKHe1vBisQ_AUIDCgD&biw=960&bih=467#imgrc=4JGFj6nmlNpZIM:&spf=1529357282024
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