The Hamilton County Sheriff's Office is investigating two separate incidents at Ooltewah High School, including an alleged sexual assault and a "medical event."
In the medical incident, the juvenile was taken to a local hospital, sheriff's office spokesman Matt Lea said.
"To my knowledge, no determination has been made as to what caused the medical event," he said.
He declined to provide further details, citing the student's age, as well as medical privacy laws.
The alleged assault incident is separate from the medical incident and is being criminally investigated.
Lea did not provide additional details on that case, either, stating both the victim and the suspect are juveniles, meaning those records are confidential. He also refused to confirm when the alleged assault happened.