Four women were arrested at a massage parlor in Arapahoe County Tuesday night after undercover officers say they were offered sex at the spa.
Officers got a tip that prostitution was going on at the Bali Spa in the 1800 block of South Parker Road.
An undercover investigator went into the spa after 6 p.m. Tuesday to get a massage and was asked if he wanted a sex act performed on him, authorities said.
Yang Senga, 37, and Nyong Toups, 50 were arrested on suspicion of prostitution.
Michelle Chin Schramm, 50, and Yucha Kwan Heberling, 38, were arrested on suspicion of keeping a place of prostitution.
Two other women who were in the spa, Do Kim, 30, and Soo Hee Chon, 29, are being turned over to immigration officials for visa violations.
Three men who were in the spa at the time were questioned and let go.
Investigators say they found $6,000 and other evidence of prostitution inside the spa.
Almost a year ago, Denver undercover officers conducted similar raids across the metro area on several massage parlors.
Officers watched 40 spas during the investigation.
Eighteen spas were raided and 16 of them were shut down for illegal prostitution.
About $90,000 was taken in the raids, and officers seized cars worth a total of $80,000.
Staff writer Felisa Cardona can be reached at 303-820-1219 or at fcardona@denverpost.com.
