Detroit- An alleged sex ring is under investigation in Livonia, in which women were allegedly brought from the Ukraine to work at a strip club and have sex with customers.

Two men — whose names were not released — are accused of forcing at least four Ukrainian women to work as sex slaves at the Cheetah nightclub in Detroit.

Neighbors who live near the men in a Livonia neighborhood said they became suspicious when they heard a woman call for help.

“She just came out, started screaming, ‘Help me. Help me,'” said neighbor Aaron Ellis

Ellis said another neighbor called police.

Investigators said the men brought the women to the United States, but then were told they owed money for airplane tickets. When they could not pay, they were forced to strip to pay back the money, it was reported.