RedactedNarrative: On 05/06/2022 at approximately 8:22 A.M., I, Cpl. of the Maryland Natural Resources Police, responded to a boat fire in front of Holiday Hill Marina (3922 Calawasse Road, Edgewater, MD 21037) on Whitemarsh Creek off of the Rhode River, Anne Arundel County, Maryland. Upon arriving to Holiday Hill Marina, I observed the vessel in question (2006 Monterey, 37' in length, Coast Guard Document# 1190408, Vessel Name "Red Man," hailing port: Edgewater, MD) fully engulfed in flames. The Monterey was being held away from the pier by one of the tenants of Holiday Hill Marina utilizing a boat hook. 
  
      I immediately ran down the dock and verified that no individuals were trapped on the Monterey. I spoke to several tenants of Holiday Hill Marina who advised that there were two individuals onboard the Monterey at the time of the explosion but made it off safely. I then, with the assistance of an Anne Arundel County Officer, cleared the remaining tenants off of the dock in case the Monterey drifted too closely. It was at this time that multiple Anne Arundel County Fire Personnel arrived on scene and were able to safely extinguish the fire. After the fire was extinguished, the Monterey sank in front of Holiday Hill Marina at GPS coordinates: N 38 degrees 53.652', W 076 degrees 31.366' in approximately 5' of water.  
  
      I spoke to EMS units on scene who advised the two individuals were being evaluated in the ambulance. Operator1 stated that he and V1 occupant departed Holiday Hill Marina at approximately 7:15 A.M. on the morning of 05/06/2022 aboard the Monterey. Operator1 advised he operated the blowers for approximately five minutes before starting the engines. Operator1 stated he and V1 occupant cruised for approximately a half an hour to the mouth of the Rhode River before returning to Holiday Hill Marina. 
  
  Operator1 stated he operated the Monterey near top speed the entire time but noticed the starboard engine seemed to be lacking power. Operator1 advised however, that the temperature gauges for both engines remained constant during the duration of the cruise. Upon returning to Holiday Hill Marina, Operator1 operated the Monterey past his slip in preparation to back it in. Operator1 stated he jockeyed the throttles back and forth as he attempted to back the Monterey into the slip when the starboard engine stalled. 
  
  Operator1 stated he put both throttles into neutral and activated the blower. Operator1 then turned the key to restart the starboard engine when there was a sudden explosion which threw both Operator1 and V1 occupant into the dash. Operator1 stated the explosion was so strong that it blew the engine cover off into the water. Operator1 stated the fire suppression system was activated and he also attempted to extinguish the fire with a handheld fire extinguisher to no avail. Operator1 and V1 occupant then jumped off the bow of the Monterey onto a docked sailboat and then retreated onto the pier at Holiday Hill Marina.
  
      I asked Operator1 if he had experienced mechanical issues with the starboard engine in the past. Operator1 stated the head on the starboard engine was worked on last year because it was leaking a small amount of coolant. I asked Operator1 if he had purchased fuel recently. Operator1 advised his last fuel purchase was in the fall of 2021. Operator1 stated the Monterey had approximately 176 gallons of gas in its fuel tank at the time of the explosion. 
  
      I asked both Operator1 and V1 occupant if they suffered any injuries as a result of the explosion. Operator1 stated that he suffered a slight cut on the right side of his nose and a minor laceration to the top of his head. Operator1 also complained of thumb soreness and soreness in his right knee. V1 occupant stated that he suffered an abrasion on his left hip and complained of soreness in both his tailbone and his lower back. After I completed my interview with Operator1 and V1 occupant, EMS personnel checked on Operator1 and V1 occupant. EMS recommended that both Operator1 and V1 occupant seek additional medical attention because of potential internal injures they may have suffered as a result of the explosion. Operator1 and V1 occupant were transported to Shock Trauma in Baltimore (EMS Run# 2022-30-669) for further medical evaluation. 
  
     Ofc., of the Maryland Natural Resources Police, responded to Shock Trauma and received written statements from both Operator1 and V1 occupant. There were no additional injuries discovered to either Operator1 or V1 occupant at Shock Trauma.
  
      I gathered written statements from five tenants at Holiday Hill Marina and have attached them to the report. All of the tenants reported hearing a loud explosion followed by the Monterey being engulfed in flames. 
  
      I spoke to Tow Boat U.S., who advised once Tow Boat U.S. receives confirmation from Operator1's insurance company (Atlantic Seahorse Insurance) they will salvage the Monterey. 
  
      GPS coordinates were provided to the United States Coast Guard, who will be broadcasting a notice to mariners over VHF 16, advising mariners of the Monterey's location. 
  
      The fire resulted in a total loss of the Monterey (monetary value of $94000). In addition to the Monterey, Operator1 also suffered the loss of GPS/Radar equipment, VHF radio, electronic compass, and the loss of his cell phone and wallet. Operator1 estimated the monetary loss of these aforementioned items to be $12000.  There was also damage to a vessel docked at Holiday Hill Marina (1986 40' Silverton Vessel, white in color, Coast Guard Document# 2146C, vessel name: "Family Affair"). The owner stated the swim platform of his Silverton was damaged and estimated the damage to be approximately $5000. He was not aware of any other damage sustained to the Silverton. 
  
      No charges will be filed as a result of the accident and the investigation is considered closed.
  
      All events occurred in Anne Arundel County, Maryland.
  