Police are carrying out tests into the cause of the incident A man in his 50s has been found dead and his wife is critically ill in hospital after an incident at a house in County Fermanagh.
The man, who has been named locally as Killian Scallon, and his wife Pauline were discovered by the fire service at about 1100 GMT on Wednesday.
Police said they are investigating reports that the house on Kesh Road in Irvinestown was filled with fumes.
Tests will now be carried out to establish what happened.
The Ulster Unionist leader Tom Elliott MLA who knew Mr Scallon expressed his sympathy to the family.
“The family are well known locally and this will be a huge shock to the them and to the whole community,” he said.
“I knew the victim personally and I would like to extend my sincere sympathies to the entire family circle at what will be a hugely difficult time.
This article is from the BBC News website. © British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.