WASHINGTON COUNTY, Wis. (CBS 58) -- One person is dead and another seriously hurt after a rollover crash in Richfield on Sunday, Sept. 27. 

It happened on Highway 45 southbound, just north of the Interstate 41 merge around 2:25 a.m. 

The Washington County Sheriff's Office says the vehicle went off the road and overturned many times. The driver, a 29-year-old man from West Allis, died at the scene. His passenger, a 27-year-old woman from West Allis, was ejected from the vehicle. She was taken to a local hospital by flight with serious injuries. 

Authorities believe alcohol and no seatbelts were factors in the crash. 

This is the third traffic fatality investigated by the Washington County Sheriff’s Office in 2020.