Boise, Idaho ( KMVT-TV / KTWT-TV ) - The Ada County Coroner’s office has confirmed that the 12 year old boy from Bellevue who was involved in a near head on collision of two snowmobiles succumb to his injuries late Monday night. The accident happened Sunday afternoon February 16, 2014 south of Bellevue. Authorities say Nolan Kreczkowski suffered severe head and chest trauma after being thrown from the snowmobile he was riding. The 12 year olds father, Keith Kreczkowski 47 of Bellevue had chest, head and neck trauma. All of this after the two collided in mid-air on their snowmobiles. The Blaine Sheriff’s office say the father was riding a Polaris 700 while his son was on a Polaris 400. Both riders were apparently unaware that the other person was taking the jump from the opposite direction. The bottom of Keith’s snowmobile struck Nolan’s snowmobile in the hood/motor area and then continued to travel over the snowmobile into Nolan’s upper torso. Both victims were thrown from the machines and both lost their helmets in the collision.  One of the snowmobiles was traveling east and the other was traveling west.