3 Vietnamese nationals arrested for drug use at foreign club; 4 warrants rejected

Investigation revealed that among them, 6 out of 7 were undocumented immigrants, with only 1 holding a valid residency status.
3 Vietnamese nationals arrested for drug use at foreign club; 4 warrants rejected n.news.naver.com Of the 7 Vietnamese nationals who used drugs collectively at a club exclusive to foreigners, 3 have been arrested by the police. The Incheon Nonhyeon Police Station announced on the 26th that they have arrested three Vietnamese nationals, including a person in their 20s (referred to as A), on charges of violating the Narcotics Control Act. Jeon Kyung-ho, Incheon
7 foreigners caught using drugs, 6 of whom are undocumented
I can't even imagine how many undocumented immigrants there actually are