An investigation has been launched after an elderly woman died in a domestic incident, police said.
Police were called to a house in Madeira Avenue, Leigh, Essex, on Saturday afternoon to reports of an assault.
A spokeswoman for Essex Police said an 87-year-old man and a 81-year-old woman were taken to Southend General Hospital but the woman died later that evening.
The man is still in hospital in a non-serious condition.
Officers said they are treating the incident as "domestic related" and are not looking for anyone else in connection with the death.
A post-mortem examination is due to take place later.