Woman, 43, found dead at home in Richmond
The death of a 43-year-old woman in south-west London is being treated as suspicious, police have said.
Officers found her body at a house in Lower Mortlake Road, Richmond, at about 14:00 GMT on Saturday.
Four people - two men, aged 48 and 21, and two women, both aged 27 - have been arrested and remain in custody at police stations in London.
Officers are trying to formally identify the woman and waiting for the results of a post-mortem examination.
The police found the body after concerns were raised for the woman's welfare.