The bottom has dropped out of the blow market.
The price of cocaine in Europe is set to fall even further as smugglers use new routes through West Africa and the Balkans, says the UN anti-drugs agency.
In its latest report, the International Narcotics Control Board (INCB), said West Africa has become a "major hub" for South American cocaine smuggling.
UK officials said last week that the price of cocaine had fallen by half in the last 10 years.
The INCB said prices would continue to fall unless the supply was curtailed.