Police arrested Connally, 22, at her apartment in Union City on charges of misdemeanor sexual assault, but overnight the charge was upgraded to felony sexual battery.
The bus driver was 21 years old at the time of the relationship, the student was 16 years old, according to police
A spokesman for the Fulton County School System said the district acted on a tip from another student about the alleged relationship.
The victim attends 11th-grade at Langston Hughes High School in Fairburn.
“At this time, Connally has been terminated, and the criminal investigation is under way,” said Allison Toller, director of communications for Fulton County Schools.
Channel 2 Action News spoke to an attorney for the student’s mother and the attorney admitted the driver and student had a relationship for over a year, but claimed the relationship has ended