A West Branch woman fell asleep and flipped her vehicle on southbound U.S. 23 around 6:15 p.m. Sunday, police said.
Fenton Police Sgt. Dave Reinfelder said the woman was driving from West Branch to a family Christmas party in Ohio when she fell asleep, lost control of her vehicle, collided with the guardrail on U.S. 23 South near North Road and turned her car on the side.
She had only minor injuries in the crash, Reinfelder said.
"It appeared a lot worse than it was," he added.
Traffic on U.S. 23 was backed up for about an hour as crews cleaned up the crash.