Macomb County prosecutors are accusing six women of prostitution and related activities at two Warren massage businesses.
The two businesses, Green Massage Center and Chinese Body Works, served as a front for the operation, police said.
The women were charged by the Macomb County Prosecutor's office with a variety of felonies and misdemeanors, including accepting earnings of prostitution and keeping house of prostitution, with punishments ranging from 90 days to 20 years.
Investigators discovered the alleged prostitution ring through anonymous tips and online databases. The women were arrested during a raid of the businesses and their known residence in Sterling Heights.
The defendants were arraigned Friday.