DANE COUNTY, Wis. (CBS 58) – Two men are dead after a one-car crash in the Village of Windsor.

According to a release, Dane County deputies were called out to the crash just after 4:00 a.m. Monday, March 26 at CTH V at Snowy Owl Court following a tip from a passerby. It’s believed the crash happened hours before it was discovered.

Investigators say a 2011 Lexus left the road after failing to negotiate a curve and rolled multiple times. The driver, a 29-year-old man was not wearing a seatbelt and was ejected from the vehicle. His passenger, a 27-year-old man, was wearing a seatbelt but was found dead inside the vehicle.

The names of the men have not yet been released. 

Speed is believed to be a factor in the crash which is under investigation by the Dane County Sheriff’s Office.