Three people were hurt in a shooting at Six Flags Great America in Gurnee, Illinois on Sunday night.

A 17-year-old boy suffered a thigh injury and a 19-year-old girl sustained a leg wound. Both victims were hospitalized, but neither of their conditions were deemed life-threatening. The third victim had a shoulder injury, but declined going to the hospital.

According to a news release from Gurnee police, a white sedan entered the Six Flags parking lot at 7:50 p.m. Multiple people reportedly came out of the car and started “shooting toward another individual in the parking lot” before swiftly getting back in the car and fleeing the premises.

A spokesperson for Six Flags said: “Three people were injured this evening when shots were fired from a single vehicle in the parking lot. The vehicle immediately drove away. Park security personnel and officers from the on-site Gurnee Police Department Substation responded immediately. Emergency services responded, transporting two persons to the hospital for evaluation. A third person declined treatment.”

The Gurnee police noted that this was “not a random act” and appeared to be a “targeted” event outside of the park. They specified, “This was not an active shooter incident inside the park.”

Six Flags said in a statement, “Layers of preventative measures both inside and outside the park are in place for the protection of guests and team members. We continue to review and enhance our protocol on a daily basis to ensure we are providing the highest level of safety.”

A witness recalled the frightening event: “All of a sudden everyone started rushing towards us and yelling that there was a shooter, so we turned and immediately started running in the opposite direction. We ran to the bathroom area, and one guy was saying everyone go to the stall that’s furthest away from the door. I found a stall with, like, three other people in it, and there were a lot of people crying and everything like that.”

The incident is currently under investigation and no one is in custody yet.

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