COLUMBIA — The mother of a South Carolina toddler missing since Thanksgiving was arrested in Georgia and accused of prostitution shortly before her son’s disappearance.

East Point, Ga., police said 22-year-old Zinah Jennings was arrested in November after she offered sex to an undercover officer. Authorities say Jennings agreed to take $40 in exchange for sex and is also facing a drug charge for smoking marijuana when she was arrested.

Jennings has been in jail in Columbia since late December, charged with lying to authorities about the whereabouts of her son. Amir Jennings was 18 months old when his grandmother reported him missing, saying she hadn’t seen the boy since Thanksgiving.

Zinah Jennings had been staying with a half-sister in the Atlanta area.