British authorities have arrested three individuals in South Wales following the seizure of a record 12-ton cannabis shipment. The drugs, estimated to be worth £139 million, were imported from Canada. The investigation was initiated after a tip-off from Canadian law enforcement. This represents the largest cannabis seizure in UK history. Authorities are investigating the trio’s alleged involvement in a multi-million pound criminal enterprise. The operation highlights international collaboration in combating drug trafficking. Further details regarding the suspects and the specifics of the smuggling operation have not yet been released.