Britain’s National Crime Agency (NCA) said an operation involving its personnel as well as the Australian Federal Police (AFP) and Border Force arrested the British man from Stockton-on-Tees and five Nicaraguans aboard a Jamaican-flagged yacht 80 miles out to sea.
The luxury yacht Kahu, which was sailing from the Caribbean, was escorted back to an undisclosed location on the UK mainland where a team carried out a deep rummage search and discovered the enormous haul of class A drugs.
The men, whose ages range from 24 to 49, were arrested on suspicion of drug trafficking and remain in custody awaiting interviews, the NCA said.
The NCA deputy director, Matt Horne, said: “There’s no doubt these drugs would have been sold on into communities across the UK in such ways as county lines fuelling more crime and misery.
“Organised crime groups (OCG) are motivated by money. The deprivation of these drugs will smash a hole in the OCG’s plans and ability to operate.
“Also, the arrests of the men transporting the drugs means the crime group has lost trusted offenders who would have been key to their operation.
“We continue to work with partners at home such as Border Force and those abroad such as the AFP to protect the public from the class A drugs threat.”
The AFP assistant commissioner, Lesa Gale, said: “Intelligence from Operation Ironside had enabled the AFP to assist international enforcement partners in disrupting an alleged sophisticated criminal network.
“Operation Ironside has opened the door to unprecedented collaboration across law enforcement agencies around the globe.
“This result highlights the importance of the AFP’s partnership with the NCA to combat offshore transnational organised crime that impacts both of our countries.
“The AFP and NCA have a strong, historic relationship and both agencies recognise the significant threat to national security posed by transnational organised crime.”