The death of an elderly woman at a care home, initially treated as a murder investigation, was not suspicious, Leicestershire Police have said.
Her body was discovered at Thurn Court care home, Thurncourt Road, Leicester on Sunday 22 October.
After the discovery, a 56-year-old woman was arrested on suspicion of murder then released.
Police said their inquiries were complete and it was now a case for the coroner.
A Leicestershire Police spokeswoman said an initial post-mortem examination had proved inconclusive and additional medical tests were carried out.
She said: "Further investigations have now been completed and officers are now not treating the woman's death as suspicious.
"Accordingly, it will now be a matter for HM Coroner and no further action is to be taken in relation to the woman who was initially arrested in connection with the death."