Eleven people were arrested and four victims were recovered during a sex trafficking sting last week in St. Paul, according to the Minnesota Bureau of Criminal Apprehension.

Investigators with the BCA’s Human Trafficking Investigators Task Force and the St. Paul Police Department conducted the operation from July 27-28. The suspects talked online with undercover agents who posed as minors or sex buyers, the BCA said. The suspects were arrested when they arrived at an arranged meeting place for an “encounter.”

Four female victims were recovered from “trafficking situations” during the investigation, according to the BCA.