TAIPEI (Taiwan News) — A building in Kaohsiung’s Daliao District was used as a dance hall and drug den on weekends, with police busting 64 Vietnamese, including 14 reported missing from their employers on June 22.

The police also confiscated more than 900 drug-laced instant coffee packages containing ketamine, amphetamine, cathinone, and some marijuana. Around six cell phones were also seized, along with NT$1.73 million (US$53,200) in cash.

Four people were charged with serious crimes, including a 67-year-old manager of the dance hall surnamed Hsieh (謝), a 59-year-old accountant surnamed Yen (顏), a 31-year-old suspected drug dealer surnamed Huang (黃), and a 42-year-old drug user surnamed Hsieh (謝). All four were transferred to the prosecutor's office for violating the Narcotics Hazard Prevention Act, per CNA.

The Kaohsiung City Police Department’s Criminal Investigation Division issued a press release on Monday (July 1) saying the weekend dance hall attracted over one hundred people every Friday and Saturday night. Staff at the venue are suspected of selling drugs disguised in instant coffee bags.

The police formed a task force that observed the facility and tracked potential leads for several days. On June 22, a search warrant was granted and a raid was carried out.

In addition to the Vietnamese detained, nine Taiwanese were also at the location. Seventy-three people were caught in the raid.

Kaohsiung police said that cooperation with the Taiwan High Prosecutors Office's recent anti-drug campaign has resulted in a total of 1,419 drug-related cases being uncovered from Jan. 1 to June 27, an increase of 125 cases compared to the same period a year ago. In terms of drug seizures, it seized 21,438 drug-laced instant coffee packages, an increase of 9,891 packages from the same period a year ago.