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CHICAGO — A teenager was charged with a felony after a group of more than 50 teens brawled near the Water Tower on Michigan Avenue over the weekend.

Witnesses tell WGN News that a large group of teenagers, between 50 and 100 people, left Water Tower Place between 8:30 p.m. and 9 p.m. on Saturday.

Shortly after, the group started fighting with people walking near North Michigan Avenue.

Police broke up the large crowd near a McDonald’s on Chicago, near the entrance to the Red Line.

Police said a 16-year-old boy was charged with felony aggravated battery after he splashed an “unknown liquid substance” on an officer’s face.

A spokesman for the Mag Mile Association said, “Chicago police have done an excellent job and are proactive in these situations.”

Police were able to break up the crowd, and many raced toward the Red Line and left the area.