A 16-year-old Denison male suffered serious injuries in a head-on collision in the Denison High School parking lot Friday night. The Iowa State Patrol responded to the scene at approximately 11:45 p.m. Their investigation revealed a 17-year-old Denison male was southbound in a 2014 Chevrolet Silverado. The 16 year old was traveling northeast in a 2004 Ford Ranger. Law enforcement reports both vehicles were traveling at a high rate of speed when they collided head on. The trucks came to rest a short distance away, where the Silverado caught on fire. The 17 year old was safely removed from the Silverado and transported by private vehicle to Crawford County Memorial Hospital. The 16 year old was transported by Crawford County Emergency Medical Services to Crawford County Memorial Hospital and later airlifted to the University of Nebraska Medical Center in Omaha.