An investigation is continuing to identify human remains found near Gosford House in East Lothian, police have said.
The update came after the family of Louise Tiffney, who disappeared almost 15 years ago, were told by officers about the find.
The remains were discovered off the A198 near Longniddry on Sunday evening by a cyclist.
Police and other specialist forensic services have been in attendance since this time, and work is ongoing to recover the remains, identify the deceased, inform their family and establish the circumstances of the death, which is currently being treated as unexplained.
Detective Superintendent Pat Campbell said: “We are consulting with a number of experts to ensure that the remains are recovered in a sensitive and careful manner and no evidence that helps us to establish what happened is damaged or missed. I understand the anxiety of those who may be waiting for news of a missing loved one, but whilst the identity of the remains is unknown we cannot speculate.
“I want to again reassure the public that when we have new information we will act upon it and inform the next of kin of any person who is relevant to the investigation; this has been taking place and updates have been given. The death is being treated as unexplained and once the remains are recovered, there will be significant, detailed forensic analysis required to establish the cause of death and whether any crime has been committed.”
Louise Tiffney was last seen leaving her home in Dean Path, Edinburgh, on May 27, 2002.
Her son, Sean Flynn, then 21, was later cleared of her murder.
Speaking in The Scottish Sun, the sister of Louise Tiffney said: “This is a bolt out the blue I really hope these remains are my sister.
“Our family has suffered a lot of loss over the years.”
June added: “I want my sister to be found but we will never get closure and give her a proper funeral.
“We had a memorial service to try and help us cope but it didn’t work.
“It’s been an absolute nightmare.
“Learning of these remains takes me back to the time when she first went missing.
“It was an area that was searched very thoroughly by police at the time. The entire estate was searched.”