Police are still at the scene of two deaths near Maguiresbridge.
A woman (51) and a man (55) were found dead at a house yesterday (Monday) in the Abbey Road area.
The death of the woman is being treated as murder.
A third person, a man, aged in his 30s, who was also in the house at the time of the incident suffered stab wounds to his abdomen. This is being treated as attempted murder. He is currently in hospital in a stable condition.
Detective Chief Inspector Eamon Corrigan said: “Post mortem examinations will be carried out in due course and at this stage we are working to establish the circumstances surrounding the incident.
"We are not looking for anyone else in relation to the incident at this time but I would ask anyone with any information which could assist us with our enquiries to contact detectives at the Incident Room in Lisnaskea on 101 quoting reference number 774 15/05/17.”