A new policy requiring children under the age of 16 to be accompanied by an adult at Six Flags Great America in Gurnee went into effect Thursday to reduce unruly behavior in the park.

A chaperone policy is being reactivated beginning Thursday at Six Flags Great America and Hurricane Harbor in Gurnee. Visitors 15 years old and younger must be accompanied by a parent, guardian or

Six Flags Great America and its Hurricane Harbor water park are bringing back their chaperone policy a week after shots were fired in the Great America parking lot.