One of 11 hurt in deadly Gulf oil platform blast says: 'I'm alive' November 19, 2012 -- Updated 0331 GMT (1131 HKT) NEW: 1 of 4 who suffered bad burns says, "My heart and lungs are healthy" NEW: He's in fair condition at a Baton Rouge hospital; 2 are critical, 1 is serious Divers found a body on the sea floor of a man who worked on the same Gulf of Mexico platform The cause of Friday's explosion off Louisiana's coast is under investigation (CNN) -- Two days after a Gulf of Mexico oil platform blast and one day after his co-worker was found dead on the sea floor, a Filipino man offered a succinct message Sunday to his relatives and countrymen: "I am alive." Wilberto Ilagan is one of the at least 11 injured in Friday morning's explosion on a platform located 20 miles off the coast of Grand Isle, Louisiana. He is also one of four -- all men native to the Philippines -- who suffered major burns and are being treated at Baton Rouge General Medical Center. Hospital officials briefed reporters Sunday about the status of those four patients, including passing along a message from Illagan, who was recently upgraded to fair condition. "I am burned, but my heart and lungs are healthy," the Filipino man said, according to the hospital. Two others remain in critical condition at the hospital, which is about 160 miles from the explosion site and 8,500 miles from the Philippines, said Baton Rouge General's chief of surgery Dr. Jeffrey Littleton. One other patient is in serious condition and being treated by staff at Baton Rouge General's burn center. "They remain in the critical window of time that follows major burn injuries," said Baton Rouge General's Chief Medical Officer Dr. Flip Roberts. But our physicians and staff remain hopeful about their prognosis. Ilagan is the only one of the four at the Baton Rouge hospital to be identified by name. Authorities and energy company officials have not yet named the man whose body was found by divers Saturday night. Another worker was still unaccounted for Sunday. Black Elk Energy President and CEO John Hoffman said that man's body was discovered under the platform, on the sea floor. He was one of two crew members who went missing after the explosion and subsequent fire. Black Elk Energy, a Houston-based firm, was in charge of the platform -- which was used for production, not drilling -- where the blast occurred.