Police say a couple was trapped in their car and had to be cut out after they crashed on I-75 Tuesday morning.
It happened just north of London in the northbound lane.
Police say the couple lost control of their vehicle on the wet roads, traveled over a guardrail, and hit a rock wall before overturning on its top.
Tonya Francis was transported to Saint Joseph Hospital.
Roger Francis refused treatment from EMS.
The couple is from Indiana.