A south Tulsa massage parlor manager has been accused of human trafficking after an undercover operation by the Tulsa Police Department.

The parlor’s manager, 30-year-old Haolin Yang, who is sometimes known as Wendy Yang, was arrested on a complaint of human trafficking.

A Crime Stoppers tip led the department’s vice unit to investigate A-1 Foot Massage, 8062 S. Memorial Drive, on Wednesday evening. An officer entered the store and paid $40 for a half-hour massage, according to an arresting document.

During the massage, a woman who was not Yang allegedly offered the officer a sexual act for $100, according to the document.

When officers interviewed the woman through a translator, she reportedly told them Yang had offered her a job in Oklahoma and that when she arrived, she was taught how to perform “sexual massages,” according to the document.

She told officers that she lived with Yang and was not allowed to leave by herself. The woman reportedly told officers she was forced to work seven days a week from 9:30 a.m. to 10 p.m.

She also told officers she was willing to testify against Yang in court, the document states. Despite what police say is a prevalence of human trafficking in Tulsa, the underground nature of the crime makes it difficult to prosecute, police say.

Yang was booked into the Tulsa County jail about 10 p.m. Wednesday. After ICE dismissed a hold against Yang, her bond was set at $100,000.