BBC News - Why West Africa cannot break its drug habit

BBC News - Why West Africa cannot break its drug habit:

Traditionally it was Latin Americans doing the deals but now Russians, Ukrainians, Dutch, Lebanese and Moroccans are thought to be involved, with many more acting as middlemen and agents on the ground.

There are also reports that Nigerians, who use their infamous international criminal networks to disperse the drugs once in Africa, are now working direct with the drug producers in Latin America.