Authorities say that snow and ice have made travel hazardous in much of Michigan, causing numerous crashes and at least six deaths.
Two Michigan State University students were traveling along U.S. 131 near Traverse City when their car spun out of control and hit another vehicle.
Carolena Elowski and Maura Brandi, both 20 years old, were killed in the crash. Wexford County authorities say speed and bad weather conditions played a role in that crash.
Western Michigan authorities say two crashes Sunday morning killed three people.
WOOD-TV and The Grand Rapids Press say two people died in a single vehicle crash in the Grand Rapids suburb of Wyoming about 2:20 a.m. About 10:30 a.m., a driver died in a two-vehicle crash in Grand Rapids.
Across the state, authorities in Michigan's rural Thumb say 48-year-old Stephany Salazar was killed Saturday afternoon after she went to help four people whose car slid into a ditch in Sanilac County's Flynn Township.
The sheriff's department says another driver then lost control of his vehicle and struck Salazar. Those in the original crash sustained minor injuries.
Another accident in Saginaw County early Sunday morning closed down a portion of Gratiot Road for a short time. Officials say a woman lost control of her vehicle and hit a utility pole.