PASADENA – Authorities have broken up what they’re calling a “high-end,” multi-million dollar prostitution ring that used expensive apartments in Pasadena and Irvine and employed numerous female prostitutes, officials announced Wednesday.

Pasadena police’s Special Investigations Unit and U.S. Immigration and Customs Enforcement agents worked for two years investigating the alleged ring, arresting six people and seizing cash, automobiles, jewelry and other property, officials said in a news release.

Police identified two of the main suspects as Li Chen, a 32-year-old female of Temple City, and Thanh Ly, a 35-year-old male from Temple City.

They were described as leaders of the ring. Both were booked on suspicion of pimping and pandering. Each was being held on $2 million bail.

An anonymous call left on a tip line led to the discovery of the ring.

“Prostitution is not a victimless crime, as some would argue,” Interim Chief of Police Christopher Vicino said in a news release. “It negatively impacts the quality of life and the very fabric of the community. The neighborhoods and apartments where these crimes were committed will ultimately be safer for the families that live in them.”