The house was reported to be filled with fumes The body of a County Fermanagh man was found in his home by two of his sisters, a priest has said.
Killian Scallon, who was in his 50s, was found dead at a house at Kesh Road, Irvinestown, on Wednesday. His wife remains critically ill in hospital.
Police are investigating reports that the house was filled with fumes.
Fr Michael McGourty said Mr Scallon’s sisters and a brother-in-law had gone to visit the house after failing to get in contact with him.
He said local people were “absolutely stunned” by the death of Mr Scallon, who was a well-known estate agent in the area and a nephew of Eurovision Song Contest winner Dana.
“I could see smoke damage in the house; there’s a lot of speculation as to the cause of death but we won’t know until we finally hear the results of the investigation,” said Fr McGourty.
He added: “The family is getting great support from friends and neighbours.”
Mrs Scallon, who is a teacher, was taken to the Erne Hospital but later transferred to the Royal Victoria Hospital in Belfast.
Emergency services were alerted at about 1100 GMT on Wednesday.
Forensic tests are being carried out to establish what happened, and the Health and Safety Executive is to examine the scene.
This article is from the BBC News website. © British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.