Two South Dakota residents were injured in a crash in Mountain Lake Friday afternoon after a semi-truck failed to yield and struck their car. It happened at the intersection of Highway 60 and Cottonwood County Road 1 at just after 3:30pm. 44-year-old Shelley Fox and 55-year-old Sarah Christensen, both of Viborg, South Dakota, were both taken to the Windom Hospital for treatment after the semi hit their 2008 Chevy. They have since been released. The driver of the semi, 74-year-old Jerald Jensen of Windom was not injured.