Lowry said there was no evidence of gang activity.
The principal's note tried to reassure parents and community members about the situation: "Please know that student safety is our top priority and the behaviors exhibited yesterday will not be tolerated. Kennesaw Mountain High School will always prosecute to the fullest extent of the law any activities which jeopardize student and/or staff safety."
Extra police officers were on school grounds Tuesday, Lowry said. The school district is still working out possible disciplinary actions for the students.