Police were investigating today after the bodies of three elderly people were discovered in one property.
Police and ambulance crews were called to an address in St Mary's Road, North Hykeham, Lincolnshire, shortly before 10.30pm last night.
A spokesperson for Lincolnshire Police said they were alerted by a concerned relative who was unable to get into her mother's house.
Officers forced entry to the property and found the three bodies inside.
The victims - two men in their 80s and a woman whose age is not yet known - were thought to have suffered carbon monoxide poisoning.
A fourth person, a woman also in her 80s, was still alive and was taken to Lincoln County Hospital, where her condition is not thought to be life-threatening.
Tony Diggins, of Lincolnshire Police, said: "The house has been cordoned off and there will be further examinations of the premises today.
"It is expected that post-mortem examinations of those who died will take place later today. A full report will be prepared for the Coroner.
"No further details can be released until the causes of the deaths are confirmed and the examination of the house is complete."Reuse content