Officers had manned the checkpoint following a tip-off that a large haul of drugs would be transported along the route.

The X-ray machine revealed the drugs hidden inside a bucket concealed under blue canvas spread over the bed of the truck.

Truck driver Sakda Srisod, 30, was arrested and charged with having illicit drugs in possession with intention to sell. He allegedly said it was his second delivery of drugs, with Tak as his destination.