Two people suffered serious injuries in a single vehicle accident in the Town of Dayton Thursday afternoon. According to the Waupaca County Sheriff’s Office, a 53 year old rural Waupaca man was driving west on Crystal Lake Road, west of East Road just before 4 pm, when he attempted to pass another westbound vehicle. After overtaking the vehicle, the 53 year old lost control of his car, entered the ditch, and hit a tree head-on. Both the driver and a 43 year old female passenger, also from rural Waupaca, were taken by ambulance to a Fox Valley Hospital. Authorities say the weather conditions prevented a medical helicopter from getting to the scene. Names of those involved have not been released, as the crash remains under investigation.