Authorities say a motorcyclist suffered serious injuries after a collision with a deer Saturday near Dubuque. 61 year old Christopher Lonergan of East Dubuque was taken by ambulance to UnityPoint Health-Finley Hospital for treatment of serious injuries. According to the Iowa State Patrol, Lonergan was operating a motorcycle south on Highway 52/Southwest Arterial at about 6:30pm Saturday when a deer entered the roadway and struck his motorcycle. A report indicates that Lonergan was not wearing a helmet at the time of the crash.