A Philadelphia man is accused of driving a 17-year-old girl to Pittsburgh to have sex with another man for 2-hundred dollars. Darnaill Foster was arrested by Northern Regional Police in an undercover operation after an officer monitoring an escort website replied to an ad Tuesday night and agreed to meet Foster and the teen at the DoubleTree in Cranberry. Frederick Woodard with The Asservo Project, a non-profit fighting human trafficking and child exploitation. Foster is charged with trafficking, prostitution and exploitation crimes and was denied bail.