Detectives investigating the deaths of two people in Lincolnshire have launched a murder inquiry.
The bodies of both victims, who have yet to be named, were found at a house in Spalding shortly after 12.15pm on Friday.
A police spokesman said officers are treating the deaths as suspicious and have made two arrests in connection with the inquiry.
Superintendent Paul Timmins, of Lincolnshire Police, said the deaths had understandably generated a great deal of local concern and upset.
Confirming that forensic inquiries were continuing at the property in Dawson Avenue, the officer said: "I would like to make clear that this type of crime is extremely rare.
"Indeed, we believe this is a completely isolated incident.
"There is still a lot of police activity in the area and extra officers in the neighbourhood and I would encourage anyone who has any concerns to please talk to our officers."
Mr Timmins added: "This is very much an active investigation that is in its early stages and police would like people not to speculate as to the circumstances surrounding it.
"We are looking at a number of lines of inquiry and doing our utmost to get to the bottom of what has happened."
Detective Chief Inspector Martin Holvey, who is leading the investigation, said: "I would like to hear from anyone in the area of Dawson Avenue from Wednesday at 12pm to the same time yesterday and who may have seen or heard anything suspicious or that they think may be relevant to the inquiry."
Anyone with information to assist the inquiry is urged to contact police directly on 101 or pass information anonymously to Crimestoppers on 0800 555 111.