According to the Lackawanna County coroner, a man from Blakely died Monday morning after being overcome by carbon monoxide gas.
Peter Gentile, 48, died at a nearby hospital.
Gentile lived at the Bodnick Street Apartment building.
Several other residents of the building also became ill.
Officials believe that a heating system malfunction led to the emissions of the deadly gas.
Police and fire officials in Lackawanna County are investigating the man's death.