Driver fatigued is being blamed on a single-vehicle rollover Friday morning on Highway 10 near Brandon.
The 2003 Dodge Ram 2500 pickup truck veered off the road at about 5 a.m. and landed in the Little Souris River on the west ditch.
RCMP say the 28-year-old Laurier, Manitoba man was able to escape his submerged truck and walk for help at a local farm yard.
The driver, and only occupant of the truck, was taken to a local hospital and treated for minor injuries.
Police are investigating to determine whether charges will be laid.