UPDATE 3:40 p.m.: The Paso Robles Department of Emergency Services has released additional information regarding Tuesday night's fire at a residence on Pine Street.
According to a department news release, the fire was determined Wednesday to be accidental; smoking material is believed to have ignited the seat area of a recliner inside the home.
Though officials have yet to identify the dead man pending notification of his family, they have said he was 75 years old and the sole occupant of the home at the time.
Original story: Paso Robles emergency crews reporting to a medical call early Tuesday night found the body of a man inside a home that had filled with smoke from a small, smoldering interior fire.
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Department of Emergency Services fire engines were dispatched to the single-family residence in the 3200 block of Pine Street at about 5:44 p.m. and discovered the unreported fire still smoldering inside the home.
The first fire engine reached the scene within five minutes of the report, and crews found a man dead inside, according to the department.
Battalion Chief Keith Aggson said Wednesday morning that the home was filled with smoke from a small fire secluded in one area of the home that had nearly burned itself out.
Though there was extensive heat and smoke damage inside the house, the fire appeared to have gone undetected by neighbors, Aggson said.
The identity and age of the man has not been released pending notification of relatives. Aggson said the San Luis Obispo County coroner will perform an autopsy later Wednesday to confirm the cause of death.
The Paso Robles Fire Department is investigating the cause of the fire, and the Paso Robles Police Department is investigating the death.
Aggson said the department expects to release additional details later Wednesday afternoon.