Monona Police arrested two women Monday night in a prostitution investigation.

Officers served a search warrant at Fei Fei Spa and Massage at 100 Frostwoods Road. They arrested the spa owner, 51-year-old Guifen Leanna, on a charge of keeping a place of prostitution.

A 37-year-old spa employee, Meizhi Chen, was arrested and charged with prostitution.

Police say this has been a lengthy ongoing investigation. They ask anyone with information this or similar incidents to contact them at (608) 222-0463, Crime Stoppers at (608) 266-6014, or you can text your information to “MONONA” and TIP411 (847411).