BLOOMINGTON, Minn. (FOX 9) - Three suspects are wanted on charges of promoting prostitution after Bloomington police uncovered a sex trafficking operation last year, a new set of criminal complaints detail.

Prostitution ring uncovered

What we know:

Kewon Koo, 29, Douglas Tran, 32, and Hyesun Kim, 43, all face counts of promoting prostitution of an individual and receiving profit from prostitution in the case. Koo and Kim have listed addresses in Lewisville, Texas, while Tran's address is listed as Roseville, Minn.

All three suspects were charged via warrant. Authorities say Koo and Kim are currently in federal custody on an immigration hold. Tran is not in custody and authorities worry he could be a "flight risk."

A fourth individual is also named in the complaint, the person who

See Full Page