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:
The man - who was further arrested in connection with the death whilst at a south London police station - is no longer at a police station, but is currently receiving medical attention. We are not prepared to discuss further regarding that matter.
Officers from the Homicide and Serious Crime Command are investigating, and the death continues to be treated at this time as unexplained.
More top news
Andrew Britton recalled the horror he felt as a routine virus took a nasty turn and his joy at the son he feared he would never have.
Malicious software that can be used for long-term surveillance operations has been discovered by computer security company Symantec Corp.
A soldier who lost a leg when he was trapped in an Afghanistan minefield has spoken of the controversial rescue mission.