Officials say dense fog may have been a factor in a crash that left one person injured in Stearns County this morning. Deputies arrived just after 5 am and found a semi truck with an empty trailer and a minivan in a ditch off of County Road 7 in Fairhaven Township. The minivan driver, 43-year-old Matthew McNamara, was extricated from the vehicle and rushed to a hospital. The semi driver was not injured.