paris france demand wednesday urgent u.n. security council session human traffic libya raise possibility sanction country video appear show african migrants sell slave spark global outrage convene italy strike deal libya slash number migrants reach shore council tuesday unanimously back resolution urge tough action crack human traffic modern slavery worldwide speak lawmakers french foreign minister jean-yves le drian suggest paris want take things call urgent session council specifically discuss situation libya libyan authorities alert several time include september decide open investigation facts le drian say want go fast libyan justice system carry procedure open international sanction le drian say footage appear show african migrants sell slave libya spark international outcry protest erupt across europe africa artists soccer star u.n. officials make pleas abuse end video broadcast cnn show say auction men offer libyan buyers farmhands sell 400 chill echo trans-saharan slave trade centuries past reveal indeed traffic human be crime humanity macron say news conference african union president alpha conde macron say want u.n. security council discuss concrete step could take tackle issue french diplomat say u.n. session would likely come days probably next week would see concrete measure could take improve situation despite events libya conde put blame firmly european union accuse encourage libyans keep migrants north african country despite government happen libya shock scandalous must establish responsibilities say conde libya government european union choose develop country ask country detain refugees ... mean add refugees terrible condition ... european friends right ask libya keep migrants european union responsible le drian say want international organization migration u.n. refugee agency publish detail traffic migrants country libya splinter along political ideological tribal line 2011 nato-backed uprise unseat former leader muammar gaddafi 2014 battle capital lead rival parliaments governments set tripoli east france tell libya act migrant `` crimes humanity ``