(Chisago County, MN)  —  The Chisago County Sheriff’s Office is investigating the discovery of a body inside of a submerged pickup truck.  Deputies responded to an alert about a GMC truck found Tuesday night at the Chisago/Lindstrom Lake public access off Stinson Avenue.  An unidentified dead male was found inside of the vehicle.  The sheriff’s office says the body is likely connected to a missing persons case out of Fridley, but no foul play is suspected.