The South Dakota Division of Criminal Investigation continues to work with the Highway Patrol and the Union County Sheriff's Office to investigate the deaths of two individuals found inside a semi-truck parked along Interstate 29, near mile marker 35 on Tuesday. 
The Division of Criminal Investigation says autopsy's on the two deceased adults, who were found in the cab of the semi, have been performed.
The DCI is not looking for suspects, nor is there any threat to the public at this time. The investigation is ongoing.