A U.S. Postal Service vehicle that rolled down a driveway near Chelsea struck and killed a mail carrier from Livingston County.

Michigan State police say 56-year-old Tracy Sylo of Pinckney died Wednesday in Washtenaw County's Lyndon Township while delivering a package to a home. Police say the mail truck was parked at the top of the driveway of a home that sits on a hill on Blind Lake Road. The vehicle rolled and struck the mail carrier, pinning her between the vehicle and a metal guardrail.

Sylo died at the scene. The death is under investigation and police are working to determine why the truck rolled. State Police ask anyone who witnessed the accident to contact the Brighton Post at 810-227-1051. (JK)