Nassau County police say 73-year-old Albert Rosen went into cardiac arrest from smoke inhalation. He was taken to St. Francis Hospital, where he died.
Rosen's 70-year-old wife Jan was also taken to the hospital. Her condition was not immediately known.
Officials also said a dog in the home also died.
The cause of the fire, which was reported at about 7:30 a.m. Tuesday, was not immediately known. It is not believed to be suspicious in origin.
Firefighters from six departments responded to the scene.
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