A 17-year-old senior at Antioch High School in Nashville was arrested Tuesday morning after a gun was found in the trunk of the car the student was driving.
Police said the .45-caliber pistol was located during a random search by school security.
While the gun was not loaded, a magazine containing seven bullets was also found in the vehicle.
The teen told police he borrowed the car and did not know the gun was in the trunk.
He was charged with carrying a gun on school property in juvenile court.