A murder probe has been launched after a woman was found with serious head injuries in a home in east London.
Officers found a woman, aged 54, unresponsive having suffered serious head injuries.
She was pronounced dead at the scene, Scotland Yard said.
A crime scene remains in place at the address in Staines Road.
A man aged 58 has been arrested on suspicion of murder and is in custody at an east London police station.
Formal identification is yet to take place and a post mortem will be held in due course.
Police said next of kin have been informed.
Detective Inspector John Marriott, leading the investigation, said: “While we have a male in custody, our investigation is still in its very early stages and enquiries are ongoing.”
Anyone who has any information is asked to contact the Met Police incident room on 020 8345 3715 quoting reference 5470/13FEB.
Alternatively, call police on 101 or tweet @MetCC. Information can also be given anonymously to the independent charity Crimestoppers on 0800 555 111.