Members of the Colombian Navy stand guard on top of a seized submarine built by drug smugglers in a makeshift shipyard in Timbiqui, department of Cauca, February 14, 2011. Colombian authorities said the submersible craft was to be used to transport 8 tons of cocaine illegally into Mexico. (REUTERS/Jaime Saldarriaga).

Reported in the Colombian (Spanish-language) paper El Tiempo here:

The sub presents the use of advanced technology seen for the first time in this country, and its construction must have cost the narcotraffickers more than 4,000 million pesos, according to the Naval police of the Pacific.

There's a related MSNBC article here.

More photos below, because who can get enough of a hundred-foot-long homemade cocaine sub?