The concept of using submarines for drug smuggling emerged in the 1990s, with initial sightings reported in Colombia. Early versions were rudimentary, often referred to as "semi-submersibles ...

The Colombian navy has intercepted a semi-submersible vessel packed with cocaine in the Pacific Ocean, as part of an operation in which hundreds of arrests have been made. It said the vessel had ...

Media reports said one of the six semi-submersible vessels — or "narco submarines" — intercepted in the operation was bound for Australia, but was stopped 2,000 kilometres southwest of ...

A security source told AFP the narco-submarines had initially been used to transfer drugs out of Colombia and on to ships off the coast. “It has been found that these semi-submersibles ...