24-year-old dies, 25-year-old critically injured in head-on dirt bike collision near Bismarck on May 27.

24-year-old Bismarck man dies, 25-year-old critically injured in head-on dirt bike collision south of Bismarck on May 27. The crash at The Desert dirt trail involved both riders wearing helmets and travelling in opposite directions. The North Dakota Highway Patrol is investigating the accident.