paris forty people arrest 500 people rescue swoop human traffic across west africa international police organization interpol say thursday interpol-led action come amid global outcry spark footage africans solve slave libya often final transit migrants want reach europe statement interpol say 500 people include 236 minors rescue simultaneous operations across chad mali mauritania niger senegal forty suspect traffickers arrest result operation underline challenge face law enforcement stakeholders address human traffic sahel region say operation coordinator innocentia apovo 40 arrest face prosecution offences include human traffic force labor child exploitation accuse force victims engage activities range beg prostitution little regard work condition human life statement say forty human traffickers arrest 500 people rescue west africa