Men and women from Africa , South Asia and Southeast Asia migrate voluntarily to Bahrain to work as laborers or domestic servants where some face conditions of involuntary servitude such as unlawful withholding of passports , restrictions on movements , non-payment of wages , threats and physical or sexual abuse .
Some are placed in involuntary servitude such as unlawful withholding of passports , restrictions on movements , non-payment of wages , threats and physical or sexual abuse .