Officers said Tierra Lewis was arrested Tuesday morning after hospital x-rays showed the infant had fractured bones.
Officers said Lewis told hospital officials that the baby fell off the couch and she fell on top of her while trying to break the infant's fall. The incident happened three days before it was reported.
Officers say the incident happened in Moultrie on February 9th but wasn't reported until February 12th in Gainesville.
Officers said the investigation is ongoing and the infant is in custody with the Department of Children and Families.