Police say the two deaths in Glenrothes last week are currently being treated as unexplained.
Officers were called to a house in the Forres Drive area shortly after 6pm on Thursday, October 4, by the Scottish Ambulance Service.
A 48-year-old man and a 37-year-old woman had been found unresponsive within the property, and were pronounced dead at the scene.
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Police now say the deaths are not being treated as suspicious.
Following a post-mortem examination on Monday, October 8, the deaths remain unexplained pending toxiology.
Detective Chief Inspector Scott Cunningham of Fife Division said: “Although the investigation continues to establish a cause of death, there is no evidence of violence or anything to suggest that the man and woman were the victims of harm prior to their deaths.
“Our condolences remain with their families at this time, and we thank the local community for their patience and cooperation as we conducted enquiries in the area.”
A report has been submitted to the Procurator Fiscal.
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