The was called to late Friday morning after some "horseplaying" between two students.
According to Lt. Scott Nix, two students in an art class were horseplaying at about 11:55 a.m. when one of the students grabbed a pair of safety scissors.
"The actions did not constitute a criminal violation," Nix said. "The school has taken the necessary actions under its disciplinary code."
Neither of the students was injured.
Sudbury police are still investigating the incident.