A 58-year-old Napa woman was arrested Thursday on suspicion of kidnapping after allegedly driving away from a Redwood Valley casino in another woman’s car containing the woman’s 16-month-old infant, the Mendocino County Sheriff’s Office said.

The infant was found unharmed and unrestrained on the back seat of the car when a CHP officer stopped it on Highway 101 in Willits, Sgt. James Wells said in a press release.