Tests are being carried out on the bodies of two people found dead in a Cardiff flat.
A neighbour alerted emergency services after one of them was seen slumped in a chair on a balcony on Sunday 24 June.
Fire officers broke down the door of the apartment in Heol Trelai, Ely to find the bodies of a 41-year-old man and a 42-year-old woman.
Police said the deaths were being treated as unexplained, but not suspicious at this time.
A neighbour of the couple had seen the man sitting in a chair on the third-floor balcony the previous day and thought he was sleeping.
But he called 999 when he saw the man was still sitting in the same position the following morning.
A South Wales Police spokesperson said: "The deceased's next of kin and HM Coroner have been informed and enquiries are continuing."
Officers are awaiting the results of toxicology reports and an inquest is due to be held.