A woman has been arrested and charged for procuring teens into prostitution following a raid on a karaoke bar in Bangkok's Bang Khen district late on Thursday night.

A Department of Provincial Administration task force and police raided Raed karaoke bar near Soi Lat Pla Khao 75 at about 10pm and arrested a 33-year-old woman, owner of the nightspot.

Three teens - two 15-year-old girls and a 16-year-old transgender girl - were rescued.

The task force received information that girls aged under 18 had been brought to the karaoke bar to provide sex services to customers. The bar had sent three youths to a nearby apartment to meet three operatives posing as customers.

According to the investigation, the bar owner had procured the teens from different provinces several months ago, making them her debtors. When they received service fees from serving alcoholic drinks or offering sex services to customers, the owner would take 80%.

A team of psychologists will talk to the teens, who will be sent to a child welfare home for rehabilitation.