South Korean police recently arrested 90 Vietnamese suspects suspected of using cryptocurrency to sell drugs in bars and clubs across the country. The suspects smuggled the drugs into the country disguised as coffee and vitamin packages and distributed them in Vietnamese bars and clubs in several cities, the police said. The police initially estimated that the gang smuggled drugs worth 1.04 billion won (about 721,000 US dollars), of which about 710 million won (nearly 500,000 US dollars) have been successfully sold. Some of the suspects are illegal residents, and 18 suspects have been detained. The case is still under further investigation.