Snow and icy roads factored into an ambulance rolling over in the Upper Peninsula.
Troopers say the ambulance was on its way back to the hospital when it rolled over on US-41 near County Road 502 in between Negaunee and Marquette.
No patients were in the ambulance and the lights and sirens were not being used when the crash happened.
The driver and passenger both working for U.P Health Systems Marquette were not hurt.
State police say the driver is at fault for going too fast for conditions.