Police and deputies rushed to Atlantic High School in Port Orange in Volusia County Thursday when a fight broke around noon in the school's courtyard. 12 arrests were made- 11 juveniles and an adult who was trespassing on the campus and was carrying brass knucles. No students were injured.
The school was placed on lockdown as a precaution. The lockdown was lifted. Police aren't saying what started the fight.
No other weapons were found on campus.