RedactedNarrative:        On November 19, 2016, at approximately 9:50 pm, PO and I (Cpl.) were instructed to respond to Brenton Bay Station by A/Sgt. Cpl. J.to assist with an overdue vessel on the Potomac River.   We received information that a vessel departed from Coles Point Marina, Virginia and was enroute back to Comb's Creek Marina and was overdue.
  
   At the Combs Creek Marina, we observed three unattended parked vehicles parked in the upper parking lot at the marina ( one black Dodge Ram P/U, one dark blue Dodge Ram P/U and a silver Dodge Dakota P/U).  Later identification on the three vehicle through MVA came back to the three of the four persons on board the vessel overdue.  A forth silver Chevrolet P/U was parked in the lower parking lot at the marina and later identified belonging to the vessel owner.  
  
  At the marina, Cpl met with the fire chief from Leonardtown Volunteer Fire Department, to coordinate search operations on said vessel.    The vessel was displaying Maryland Registration Number 9015 CR.  The vessel is a 2007, 30 ft. S-1 Marine LLC fiberglass vessel.  Further information was obtained from USCG Sector Baltimore regarding the overdue vessel.  USCG advised at, 1708 hrs call was received by Marine VHF Channel 16 for a vessel taking on water.  The caller on VHF 16 stated that the vessels was located off #12 in the Potomac River.  Communication was lost with caller.  USCG conducted a mobile cellular phone trace on the caller at approximately 1722 hrs.  USCG stated the trace was triangulated in the area south off Huggin's Point, in the area by the # 12 channel marker in the Potomac River.  Several additional attempts were made at later times but, were unsuccessful.  
  
  PO and I searched the area of at the month of Brenton Bay and the Potomac River along with Fire Rescue vessels, MSP Aviation, USCG vessels, MSP Aviation and US Navy Search and Rescue.  NRP search operations were suspended at 0230 hrs due to weather and sea conditions.  Search operation will resume at sunrise.  
  
   All events took place on the Potomac River, St. Mary's County, Maryland.