 And an 18-year-old woman died Saturday afternoon when the pickup truck she was in collided with a semi near Flandreau. The names of the people involved have not been released pending notification of family members. Preliminary crash information indicates the driver of a 1999 semi truck and trailer was traveling eastbound on South Dakota Highway 32 near mile marker 416. The driver of a 1999 GMC pickup truck was traveling the same direction behind the semi.