Police have revealed that two bodies have been recovered from the burnt-out Shropshire home of a millionaire and his family.
Christopher Foster, 50, his wife Jillian, 49, and daughter Kirstie, 15, who lived at Osbaston House, near Maesbrook, are all missing.
The building was deliberately set alight early on Tuesday, police said.
The remains will be examined by a Home Office pathologist and post-mortem examinations will be carried out later.
West Mercia Police said the bodies were found in the main part of the house overnight on Friday, but the search of the property is likely to take some days, possibly several weeks.
It is going to be a painstaking and lengthy process before the full examination of the house and its surrounds is completed
Supt Gary Higgins
Police said they were not able to give any further details such as the gender or age of the bodies which were found.
Formal identification is yet to take place and there are a range of techniques which could help, such as dental records and DNA profiles, Supt Gary Higgins said.
He added: "It is going to be a painstaking and lengthy process before the full examination of the house and its surrounds is completed.
"In the meantime, we will keep an open mind concerning what we may, or may not find."
Mr Higgins said all possible lines of inquiry were being followed up.
Special prayers will be said for the family at a church service on Sunday
Police have retrieved two computers from the house and are examining them as part of their inquiries.
Forensic teams were able to move into the main part of the house by mid-afternoon on Friday after access was delayed by falling debris.
Three horses found dead in a stable block, which was also gutted in the fire, have now been examined and police are awaiting test results.
Detectives also confirmed the bodies of three dogs had been found close to the horses and a large horse box, parked close to the gates of the property, had been removed from the site for forensic examination.
CCTV cameras from the property have also been taken away by police.
Firm in administration
Special prayers will be said for the Foster family at a church service in Maesbrook on Sunday.
The service, at St John's Church at 1000 BST, will be open to members of the public and the media.
The Fosters had been at a friend's barbecue on Monday evening before returning home later.
The fire in the house, thought to be valued at £1.2m, started at about 0500 BST on Tuesday.
Mr Foster, who made his fortune developing insulation technology for oil rigs, is listed as the director of Ulva Limited - a thermal insulation manufacturing company in Telford - with Mrs Foster named as company secretary.
The firm went into administration in August last year and a court order was issued in November for the company to be wound up.
A judge later found Mr Foster had spent the previous months stripping Ulva of its assets and transferring them to a new firm he had set up called Ulva International.
Anyone with information has been asked to contact West Mercia Police's incident room at Shrewsbury or Crimestoppers.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.