The boy suffered a large cut on his head and experienced temporary memory loss, according to the news station. He was taken to a Children’s Healthcare of Atlanta location.
Snapfinger Elementary parents were alerted to the incident Monday afternoon in a recorded voicemail.
Tiffany Henderson is facing charges of contributing to the delinquency of a minor and interfering with the operation of a school bus. Her brother is facing the same charges as well as charges of battery and cruelty to children in the first and second degrees.
Both are being held in the DeKalb County Jail without bond.
It’s unclear what charges the two middle school students face.
Group of teens storm elementary school bus, attack children inside, officials say