RICHMOND, Ohio -- Local and federal officials raided two massage parlors Tuesday in Richmond, Ind., as part of a national sting operation investigating prostitution and human trafficking.

News Center 7 was the only television news crew on the scene when authorities busted the Apple Studio Spa and the Sunshine Spa in Richmond Tuesday afternoon.

Four women were taken away in handcuffs from the two establishments. Police said they found evidence of a sex shop in both locations.

The raids were part of 19 in 3 different states by U.S. Customs, Immigration Enforcement and local police.

Authorities said they suspect the women are sex slaves in an international human trafficking ring. They believe the ring operated from Korea to Ohio and two other states.