Two people have been arrested and a house in Walsall cordoned off after a 92-year-old woman was found with a fatal head injury.
The woman, who has not been named, was discovered at her home in Albion Road, Brownhills, at 0710 BST. She later died in hospital.
Forensic investigations are being carried to determine if there are any suspicious circumstances.
A post-mortem examination will take place in due course, police said.