Drug trafficking using submarines

Narco-Submarines Guide: The Underwater World of Drug Trafficking

Drug submarines: Colombia's underwater cocaine traffic - BBC News

Cocaine Submarine Pictures: New Seizure Shows Advances

Police Seize First-Ever 'Narco Sub' off Spanish Coast

Colombia's narco-submarines - a photo essay, Colombia

Cartel 'Narco Submarines

Not Unexpected: First Trans-Atlantic Drug Submarine

How good are 'narco submarines' or submarines built by smuggling organizations? Are they technological and engineering equivalents to WWII submarines? - Quora

Cocaine Logistics” for the Marine Corps - War on the Rocks

Narco-Subs: A Game of Hide-and-Seek

Drug cartels building new 'stealth' narco subs that can smuggle £86m of cocaine into America undetected

Unusually Large Narco Submarine May Be New Challenge For Coast Guard

Drug-Smuggling Submarine With 3 Tons Of Cocaine And Two Bodies Seized Off The Colombia Coast

Drug smuggling in Spain: Is the Spanish coast littered with single-use ' narco-submarines'?, Spain

Sandboxx How Colombia's drug cartels almost bought a Soviet submarine