The Bowling Green Post of the Ohio State Highway Patrol is investigating a one-vehicle fatal crash that occurred around 7 a.m. on Interstate 475 near milepost 1 in Wood County near Perrysburg. Troopers on scene have reported that all lanes of travel have been restricted on the both sides of the roadway. Troopers are asking that motorists proceed with caution through the area. A detour is in the process of being set up.