Gangs may already be using a new secret weapon to smuggle drugs into Britain in the form of 'narco subs' laden with cocaine, an expert said today.
South American cartels regularly smuggle drugs on container ships before jettisoning the packages overboard for UK-based associates to retrieve and transport to land.
The National Crime Agency (NCA) launched 60 investigations into such incidents last year, involving small fishing boats or rigid-hull inflatable boats (RHIBs).
While many were caught by Border Force cutters, officials fear criminals could innovate by deploying underwater drones - nicknamed 'narco subs' - instead.
And, according to one expert, they may already be in operation.
