WITI-TV, WASHINGTON COUNTY - Washington County investigators are trying to determine what caused a collision on Highway 60 Thursday evening. The wreck killed 15-year-old Kurstin Reeves of West Bend and critically injured two other teenage boys.

Reeves was a passenger in a four-door car by a 19-year-old driver. A witness tells police he saw the driver stop at a stop sign. The driver's next move is still a mystery.

Westbound traffic on Highway 60 was reportedly doing at least the speed limit of 55 miles per hour or better. The driver proceeded south and into the path of the rapidly moving westbound traffic. A minivan slammed into the driver's side of the car.

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Reeves was seated between two 18-year-old males. The crash impact threw Reeves and one boy out of the car. The second teen remained in the wreckage.

The two 18-year-old males who were seated in the rear are in critical condition. The driver and other passenger in the car as well as the minivan driver are okay.