Houston police are on the hunt for the people accused of running three brothels in the city.
Authorities said the manager of one brothel and three others were all accused of running prostitution ring in three separate locations in Harris County.
They said a Puerto Rican flag displayed in the front window of the apartment would mean they were open for business.
Neighbors unaware of the business say they were thrown off with children playing on the back porch.
"A lot of brothels are fronts for human trafficking," Kathryn Griffin said.
She runs a prostitution rehab program and said these small apartments are chosen for a reason.