Floral tributes have been left outside the London home of Eva Rausing following the discovery of her body on Tuesday.
ITV News understands that Eva's husband Hans Kristian Rausing, the heir to the Tetra Pak drinks carton empire, is continuing to receive medical treatment after being arrested in connection with her death.
Mr Rausing was arrested after Eva's body was found at the couple's home in Cadogan Place, Chelsea.
Mr Rausing, who stands to inherit a billion-pound fortune from his father's business, was taken into custody at a south London police station but has since been moved to a "medical facility", police said.
Scotland Yard would not confirm the name of the suspect, but said a 49-year-old man was arrested in south London on Monday morning on suspicion of possession of drugs.
Police are treating Mr Rausing's death as "unexplained".
ITV News understands that Hans Rausing, an heir to the Tetra Pak drinks carton empire, has been arrested in connection with his wife's death after her body was found at their London home.
Daybreak's Nick Dixon reports.
ITV News understands that Hans Rausing, one of UK's richest men and heir to the Tetra Pak drinks carton empire, has been arrested in connection with his wife's death after her body was found at their home in London.
In a statement, the police have said:
- Eva Rausing was born in 1964.
- She is the daughter of millionaire American businessman Tom Kemeny, a former Pepsi executive.
- She was married to Hans Rausing, heir to the £5.4 billion business enterprise built by his Swedish father.
- In 2008, Mrs Rausing accepted a caution after she was arrested for being found with about 10g of crack cocaine when she tried to enter the US Embassy in London.
- In recent years she had been actively involved in charity work, with her family reportedly donating more than £150 million in the past few years.
Hans Rausing, one of the richest men in Britain and heir to the Tetra Pak drinks carton empire, has been arrested in connection with his wife's death after her body was found at their home in Chelsea in west London.
Her death was being treated as unexplained.
Mr Rausing had earlier been detained by police on suspicion of possessing drugs.