DPS responded to a fatal, single vehicle rollover crash on southbound I-17 Sunday morning. The crash occurred just south of Flagstaff. Officials say just after 7-am 25-year old Diego Blankwell drifted into the median, over corrected, went back onto the interstate and then rolled back into the median and across both northbound lanes. The Flagstaff man was ejected from the vehicle and pronounced dead on scene.