RedactedNarrative: Watercraft #1 was traveling westbound across the lake at approximately 35 MPH when it was struck from behind on the starboard side by Watercraft #2. When Watercraft #2 struck Watercraft #1, it caused #1 to turn sideways in the water throwing the operator from the craft, and causing one of the passengers to strike his head which had to be treated at the hospital in Bemidji. 
  
  After the accident, the operator of Watercraft #2 assisted the occupants of Watercraft #1 with returning to shore. Operator of Watercraft #1 called the Sheriff's Office and reported the accident on 6/14/15 at approximately 0600 hours. Operator #2 was able to be reached by phone, but had already left the area. Unknown damage amount or damage description of Watercraft #2. The operator of Watercraft #2 was cited for careless operation. It is unknown if Operator #2 had been drinking.