Tests on pair's bodies inconclusive
Post-mortem examinations on a married couple found dead at their home have proved "inconclusive", police said.
The bodies of a 71-year-old man and a woman, 58, were found by neighbours in Clos Claerwen, Cwmbach, Aberdare, south Wales on Tuesday.
Police said they are still treating the deaths of the couple - named locally as Barry and Kath Haberfield - as unexplained.
Neighbours Ken and Marlene Davies said the tragedy had shocked the local community.
Mrs Davies, 73, said: "We only saw them two days before Christmas Eve and they seemed fine. Kath had been ill, but she had been going to see the doctor and appeared to be managing okay.
"They were both lovely people and very good neighbours. It is strange to think we will not ever see them again."
It is believed that retired supermarket manager Mr Davies and his former shop worker wife were found dead after two neighbours had called to check if they were all right after seeing a light on downstairs in the morning.
South Wales Fire Service confirmed its firefighters had attended Mr and Mrs Haberfield's bungalow on Tuesday morning to check for carbon monoxide.
A spokeswoman added: "Fire crews arrived at the scene at around 9.25am before leaving at around 10.35am. During that time they did not detect any carbon monoxide."
Post-mortems examinations have been carried out but police said the results did not indicate a clear cause of death. Further tests will now be conducted, the results of which could take up to six weeks.