A Roberts man was killed in a single-vehicle crash on Friday morning in St. Croix County.

According to the St. Croix County Sheriff's Office, Matthew S. Drinkwine, 41, of Roberts was traveling eastbound when his vehicle left the roadway in the village of Roberts and struck a tree.

Emergency crews removed Drinkwine from the vehicle and found he was not breathing. Lifesaving efforts were unsuccessful. Authorities said he was not wearing a seat belt.

The Sheriff's Office said the death is the fifth traffic fatality in St. Croix County this year. The crash remains under investigation.

Roberts Rescue, Roberts Fire, United Fire and Rescue and the St. Croix County Medical Examiner assisted the Sheriff's Office at the scene.