Earlier on December 22, Tuong, who is now living in Guangxi province of China, was caught with two bags of drug weighing 1.5kg at Ba Mien hotel in Ka Long ward of Mong Cai city.
Tuong then admitted that he bought the drug from China to sell in Vietnam.
On December 23, the police of the northern province of Yen Bai discovered the largest drug trafficking case record in the province.
Giang A Dua, born in 1979 from Thung Man village, Hang Kia commune, Mai Chau district of Hoa Binh, was arrested for illegally transporting 387 amphetamine tablets.
Dua said that he was hired to transport the drug for 60 million VND by Mua Thi Sao, also known as Mua Y Chu, another villager of Thung Man village. Mua Y Sao was then arrested and admitted her guilty.
Meanwhile, the northern province of Dien Bien broke a drug trafficking ring by arresting three illegal drug transporters and seizing nearly 30kg of drug and 60,000 tablets of crystal meth weighing 5.5kg.
At the same time, traffic police of the central province of Quang Binh stopped a suspected motorbike running in the north-south direction for inspection. However, the driver sped up to escape, forcing the police to chase for more than 500m.
The driver, Pham Van Kien, born in 1983 and residing in Vo Ninh commune, Quang Ninh district of Quang Binh, was carrying 605 tablets of amphetamine. He confessed that he was transporting the drug for selling. Kien then was handed over to the police in Quang Ninh district for further investigation.