Emergency personnel responded to a one-vehicle crash about 7:30 a.m. Sunday on southbound Route 3 at Route 158 in Columbia.

Police said a silver 2016 Chevy Cruze driven by Randi Rokita, 32, of Waterloo, drove from Route 158 to southbound Route 3 and drove off the road, flipping the vehicle.

Rokita told police she believes she fell asleep. She was transported to Mercy Hospital South in St. Louis County for injuries not considered serious.