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GURNEE, Ill. — Suburban police are asking for witnesses to speak out after an attack at Six Flags Great America left a family hospitalized.

The Lake County News Sun reports three family members were attacked by a group of nine people – one adult and eight teens – at about 9 p.m. Saturday during Fright Fest.

Gurnee police tell the payer that the attack happened “after members of the larger group apparently cut in line and were using foul language when the family exchanged words with them.”

Police say the family, a 51-year-old man, a 50-year-old woman and a 12-year-old boy were taken to the hospital with injuries that appeared not to be life-threatening.

Police say the altercation began with a discussion, and then the suspects allegedly hit the 12-year-old.  The father tried to pull the attacker off his son and was knocked to the ground.  Then, the group, “surrounded him and hit him with punches and kicks,” The Lake County News Sun reports.

The wife then tried to help her husband and son, and was also attacked.

“It did not appear that anyone immediately came to their aid, but numerous people reached out to Six Flags employees as well as calling 911 to get them help,” police told the The Lake County News Sun.

Police arrested Gregory Battle, 18,  who is being held on $20,000 bail on charges of aggravated battery causing great bodily harm, mob action and aggravated battery in a public place. The other eight suspects arrested range in age from 15 to 17, and they face felony charges. Battle and seven other suspects are from Waukegan. The other juvenile is from Beach Park.

Police are asking for any more witnesses to contact them.

“We urge anyone with video information to come forward,” Gurnee police Officer Daniel Ruth told the Lake County News Sun. Ruth said footage from the parks’ security cameras has been “inconclusive.”

“We believe there were more witnesses that did not come forward, and any video would be useful to the investigation,” Ruth said. “We urge anyone who may have witnessed the incident to come forward and make a statement.”

Six Flags Great America said in a statement to The Lake County News Sun: 

“The safety of our guests and team members is our top priority and we have zero tolerance for reckless behavior. The perpetrators were taken into custody by local authorities…. This was an isolated incident and Gurnee police along with our own security personnel responded promptly.”