FORT WAYNE, Ind. (WOWO): Four people have been arrested in a sting operation held by Fort Wayne police. 

According to police, the suspects would advertise prostitution services online, set up a meeting location with clients, then rob them at gunpoint. This happened multiple times over a period of several weeks.

Detectives knew of nine such robberies, but think there are more that went unreported due to a combination of the nature of the illegal activity and the embarrassment of having to report the crime.

Arrested include Enocsha Boyd, Amy Pacheco, Tyreoun Guy and Shanika Clay, for robbery, criminal confinement, corrupt business influence, and other charges.