Colombia identifies new threat in drug war: the autonomous narco drone sub

Country's navy announced seizure of uncrewed narco sub, first capture of such a vessel in Colombian waters

The bust was unusual - a narco submarine capable of carrying more than 1.5 tons of cocaine. There were no drugs onboard this time, but most notably, there were no traffickers.

Last week, the Colombian navy announced that it had seized an autonomous semisubmersible", the first seizure of such a vessel in the country's waters.