Submarine seized in Colombia
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Drug submarine seized in Colombia

30 May 2012 Last updated at 13:39 BST

Colombian authorities seized a submarine on Tuesday intended for use in drug trafficking, according to local media reports.

The submarine was seized by the Colombian navy near the Buenaventura port, the country's main harbour in the Pacific.

It wasn't clear if drugs were discovered inside the vessel.

BBC presenter David Eades explains