Libya used to play host to the majority of migrants in sub-Saharan Africa .
Since that country descended into chaos following the ousting of Moamer Kadhafi , Algeria has become the main destination for the region 's migrants .
Libya used to play host to the majority of migrants in sub-Saharan Africa , but since that country descended into chaos following the ousting of Moamer Kadhafi , Algeria has become the main destination for the region 's migrants .