A man has been arrested and bailed in connection with the death of a woman in Ipswich in December.
Annette Coe was found collapsed in a property in St Edmunds Road on the evening of Wednesday 5th December. She was taken to Ipswich Hospital, where she later died.
A post mortem examination found that she died of carbon monoxide poisoning. Police and the Health and Safety Executive have been carrying out a joint investigation.
A 67-year-old man from Hadleigh was arrested on suspicion of manslaughter by gross negligence. He has since been released on police bail until 11th September.