An undercover online prostitution sting in Killeen ended with the arrest of ten people.

Police conducted the operation on May 19 after getting several complaints about human trafficking and prostitution.

Undercover officers posted ads on different websites and ten people made arrangements to exchange money for sex, according to a press release sent from the Killeen Police Department.

Detectives arrested seven people for prostitution related offenses and three for possession of controlled substances.

Police did not name any of the suspects in their press release.