RedactedNarrative: On 8-3-2017 i was dispatched to a vessel fire near moors marina on ky lake.  While enroute i was notified that all 4 occupants had made it out of vessel safely and on to another vessel. I was also notified that vessel had completely sank while being extinguished by east marshall fire boat. Upon arrival at moors marina, i met and took statements from the operator and 3 passengers. 
  Operator stated he bought vessel 3 weeks ago and has used vessel 7 days with no problems. Operator stated that during operation today he noticed temp gauge elevated and he stopped to investigate. Upon opening rear hatch, flames escaped and engulfed the rear of vessel. At that time, he had all passengers and himself exit into the lake and into a passing vessel. Operator and passengers listed lots of personal items lost on the statement forms they provided. Attached to bar is 1 cad and 4 statements and 2 digital photos provided by witness.