Diana Olson, 48, killed, Gregory Olson, 46, seriously injured in rollover on Hwy 135 near Biwabik, Minnesota

Diana Olson was driving a 2000 Chevy Blazer and traveling north on highway 135 near milepost 14 when the vehicle went off the road, the release said. The Blazer struck a sign then rolled over several times before coming to a rest back on the road right-side up in the north lanes.