MIRI: Police raided a vice joint which posed as a "health centre", and detained 14 people including four teenagers.
The 18-year-olds were among those held by Miri police during a raid at a commercial centre in the city on Tuesday night.
Nine of those arrested were foreign prostitutes aged in their 20s to 40s.
Miri police chief Asst Comm Khoo Leng Huat confirmed the raid.
The prostitutes had used the "health centre" as a front to solicit for clients seeking sexual services.