Last month, four men were arrested and charged in connection to a five-year FBI human trafficking probe centered to 'On the Border Gentleman's Club.' 

According to officials, a victim told investigators sex acts happened in the VIP lounge. Investigators say that victims were forced into working at the club and in other states and forced to hand over money they made. 

In a statement, 'On the Border's' management says only one of the four men charged worked for the club and he has since been fired. 

The owners also say they've brought in an outside firm to improve training and recruitment at the club. 

The training will also include a trafficking awareness and prevention program.