A Denver man has died after a crash on Friday afternoon in Pocahontas County. 24 year old Kyle Briggs was killed after he failed to stop before crossing Highway 4 and was hit by a semi, according to the Iowa State Patrol. The semi was driven by 21 year old Ryan Larson of Armstrong. 44 year old Kristine Price, of Rolfe was taken to Pocahontas Community Hospital where she too died from her injuries. 47 year old John Price, of Rolfe, and 19 year old Elyjah Aden, also of Rolfe, were injured in the collision as well. Price was taken to the Palo Alto County Hospital while Aden was flown by helicopter to the Iowa Methodist Medical Center. Their conditions are unknown at this time.