RedactedNarrative: On june 14th, 2020 Lt. observed a US Towboat vessel pull up to Whale Harbor Marina with two occupants stating they were just part of a vessel accident with injuries.  Lt. and I took statements from the two and received the operator of the vessels information, as well as the injured party.  
  
  	We arrived at 27 Ave D. Key Largo and observed the operator, and two other males arrive at the house.  The operator stated that they were at the sandbar and when he started the vessel to leave the cowling exploded and shot straight into the air.   Operator stated he did not know anyone was hurt and put out the small flame on his engine. 
  
  	Operator then drove the vessel back to his house after fixing what appeared to be a small fuel leak in the engine. Operator  said that tow boat was on scene immediately and told him to go home while they took the injured party to shore. ; Subject admitted to hospital with minor lacerations to face.