MARIETTA, Ga. (AP) — A suburban Atlanta woman accused of arranging for her son to travel with a stranger she found on Craigslist is being held in the Cobb County jail, police said Tuesday.

A Gainesville, Georgia, man posted an advertisement late last week offering to split the cost of driving to the Sarasota, Florida area, said Cobb County police spokesman Dana Pierce.

Shelia Sherrie Joyner of Marietta responded, saying she was looking to send her son to visit his grandmother, Pierce said.

Joyner was initially reluctant to tell the man how old her son was. The man who posted the advertisement pressed Joyner to tell him the boy's age before moving forward with arranging the trip, police said. The would-be driver called authorities when he was told the boy is 9 years old.

Joyner and the would-be driver set a drop-off point at a gas station near Interstate 75 and a detective from the Cobb County Police Crimes Against Children Unit posed as the driver. When a baby sitter arrived with the boy at the drop-off point on Friday she was taken in for questioning, police said.

Joyner had told the baby sitter the man she was to drop her son off with was a close friend, police said. Charges haven't been filed against the baby sitter, whose identity hasn't been released.

According to Cobb County jail records, Joyner is charged with contributing to the deprivation of a minor. Her bond has been set at $1,320 and jail records show she's also being held on more than $5,900 for two counts of failing to appear in court.

Police could not say Tuesday whether the boy was in the custody of relatives and jail records don't show whether the mother has an attorney.