Over the last week, the Idaho State Police have reported 7 serious highway accidents. Idaho State Police Reported 5 Highway Accidents Since Friday: 2 Were FatalThe 100 Deadliest Days of Summer in Idaho have been exactly that, deadly. ISP have reported at least 39 fatal highway accidents since summer began. Semi Truck Driver in Idaho Killed After Crashing Into a TreeThe Idaho State Police reported a fatal accident early on July 24th, around 5:30 AM, on State Highway 53 near mile marker 7. READ ALSO: Body of Swimmer Recovered From Idaho’s Payette LakeBoth fatal accidents are being investigated by the Idaho State Police.