Japanese police have seized 600 kilograms of illegal stimulant drugs from a fishing boat moored at a port in Kumamoto Prefecture, southwestern Japan.
Authorities say they believe this is the second largest haul in Japan and it has a street value of 36 billion yen, or about 330 million dollars.
Police, Japan Coast Guard and other officers searched the boat at Oniki port on Wednesday to find bags containing large quantities of stimulant drugs.
They arrested 11 Japanese and Taiwanese people. Three of them were on board the boat and were held on suspicion of possessing the stimulants for sale at profit. The other eight were arrested for either attempting or preparing to smuggle the drugs.
Police have declined to state whether the suspects have admitted to the allegations, saying that a disclosure would hamper their investigation.
Police say they were on alert at the port area after receiving a tip on the attempt to smuggle stimulant drugs.
They suspect involvement of an international drug-dealing ring.