ATLANTA - A man accused of operating a sex trafficking ring in Atlanta has been sentenced to life in federal prison.

Prosecutors say Soloman Manasseh Mustafa of Stone Mountain committed violent sexual acts against his victims, bound them with duct tape, took their identification and committed other atrocities to keep them captive.

Mustafa was sentenced Wednesday after being convicted in July of sex trafficking, kidnapping, transporting women across state lines for prostitution, document servitude, and enticement of a minor for sexual activity.

His co-defendant, Kalandra Annette Wallace of Jonesboro, pleaded guilty in October and got five years in federal prison.

Authorities say Mustafa and Wallace recruited young women through classified ad websites and lured them into prostitution. Some were taken against their will to Homewood, Ala., to have sex with men.