British agents seized one billion dollars worth of cocaine in Gambia:

West Africa has become a major transit hub for trafficking Latin American drugs to markets in Europe.

Drugs cartels are taking advantage of the region's poverty and weak security and judicial systems.

Agents from the UK's Serious Organised Crime Agency - the rough equivalent of the US FBI - helped discover the haul of highly concentrated cocaine behind a false wall in a warehouse basement an hour's drive from the Gambian capital, Banjul.