BEDFOD TOWNSHIP, Mich. -

A 25-year-old Lambertville woman is in critical condition after crashing into an empty school bus Monday morning.

The Monroe County Sheriff's Office said Danna R. Gaines-Carpenter was going southbound on Douglas Road when she crossed the center of the roadway and hit a Bedford Public Schools bus.

the bus driver, 56-year-old Debra M. Lake, wasn't hurt.

Gaines-Carpenter suffered several injuries and is hospitalized in Toledo.

Authorities haven't said what caused the crash.