On August 24 at approximately 7:20 p.m. the Yellow Medicine County Sheriff’s Office responded to a one vehicle rollover northwest of Granite Falls on 306th Ave. The driver and only occupant, Ryan Martineau from Sacred Heart, was ejected from the vehicle during the rollover, and was flown to HCMC. He is said to be in critical condition. Assisting the Sheriff’s Office were the Granite Falls Police Department, Granite Falls Ambulance, and the Granite Falls Fire Department. The cause of the accident is under investigation.