(CBS) — A huge fight between dozens of teens has led to the arrests of five people Friday night at Navy Pier.

Chicago Police were forced to temporarily close the pier right in the middle of Winter Wonderfest. They investigated reports of a disturbance caused by groups of teenagers.

READ MORE: Chicago Weather: Frostbite Risk Within 30 Minutes Of Exposure As Wind Chills Drop Below Zero

One worker at Navy Pier told the Sun-Times he saw at least 100 teens involved in eight different fights.

READ MORE: Chicago Weather: Tips Lower Your Gas Bills As Temperatures Drop

Those teens reportedly then headed north, causing more disturbances near the Water Tower and a Red Line stop.

Those five people arrested were charged with misdemeanor disorderly conduct. They are all males, ranging in age from 14 to 22.

MORE NEWS: CTA Blue Line Service Resumes After Man Killed By O'Hare Bound Train

Anyone attending the Winter Wonderfest at Navy Pier will have to be accompanied by a legal guardian, who must show an ID to get in, according to a Navy Pier spokesman.