Three men are facing charges as the result of a human trafficking sting operation in Swansea. 

A Rhode Island man and two Massachusetts men were arrested Tuesday and charged with sexual conduct for a fee with a child under 18 and attempted rape of a child. 

They all entered not guilty pleas at their arraignments yesterday in Fall River District Court with bail posted at five-thousand-dollars pending another court date next month.  Investigators said the sting started with an online ad.