The European Union and the African Union say at least 3,100 migrants who were stranded in Libya have been returned to their home countries in the past two weeks. A new task force, which also includes the UN, aims to repatriate another 15,000 migrants from Libya by February, AP said. Recent footage showed African migrants in Libya being auctioned as slaves, and several African nations have begun bringing home hundreds of their citizens. Up to 700,000 migrants are thought to be stranded in dozens of detention camps across the North African country.