( CNN ) -- The last of six Texas A & M University mariners who went missing in the Gulf of Mexico was found dead Sunday afternoon , the Coast Guard said . The other five crewmates were rescued earlier in the day . Members of the Texas A & M Offshore Sailing Team are shown in this photo from the team 's Web site . The deceased mariner was identified by the university as Roger Stone , the vessel 's second safety officer . The survivors -- four university students and a safety officer -- told the Coast Guard they were forced off their sailboat after it took on water and capsized . `` The flooding was so fast that the thing flipped over , '' Coast Guard Capt . William Diehl told CNN . The sailboat , named Cynthia Woods , was one of about two dozen boats heading from Galveston , Texas , to Veracruz , Mexico , for the annual Veracruz Regatta race , which began on Friday . Diehl said the boat was well-stocked with safety equipment -- including emergency radio beacons , life rafts and ring buoys -- but the crew could only manage to find four life jackets after the boat tipped over . `` The survivors told us that [ when ] they went into the water , they had four life jackets among the five , and they huddled together and they exchanged the life jackets among them so that they could stay afloat , '' Diehl said . Communication with the boat was lost about midnight Friday , and the boat missed its 8 a.m. radio check the next morning , the Coast Guard reported . A sailboat matching the description of the missing 38-foot boat was found overturned about 5:15 p.m. Saturday , authorities said . The five survivors were found several hours later about 23 miles south of Freeport , Texas , according to the Coast Guard 's press release . They were lifted to safety by a U.S. Coast Guard helicopter around 2 a.m. local time and taken to University of Texas Medical Branch in Galveston for treatment . The search for the missing crew member involved two Coast Guard helicopters , a Falcon jet , a Marine Corps C-130 -- which has night-vision capabilities -- and the Coast Guard cutter Manowar . All of those on board the capsized sailboat were experienced sailors , Diehl said . `` They were very well trained , '' Diehl said . `` Obviously [ they were ] the more senior cadets at the university here , and they had very experienced safety people on board . '' When rescuers retrieved the capsized boat 's hull , Diehl said the keel was missing . `` That 's the part that keeps the sailboat balanced in the water , '' he said . `` And from talking to the survivors this morning , that 's where the flooding started for them . '' The 725-mile Veracruz regatta began on Friday and boats are expected to arrive in Veracruz on Wednesday and Thursday .
Deceased mariner identified by the university as Roger Stone . Coast Guard rescues six sailors reported missing . Texas A & M sailboat was taking part in regatta from Galveston to Galveston , Veracruz . Boat 's five -person crew missed 8 a.m. radio check Sunday .