How Boris Berezovsky died is still being investigated, although his Berkshire mansion has been declared safe by radiation experts.
Russian oligarch Boris Berezovsky has died at the age of 67.
Russian oligarch Boris Berezovsky has lost his High Court battle with former business partner Roman Abramovich.
The wife of former Russian spy Alexander Litvinenko has said that Boris Berezovsky had "many enemies" and that it was "not likely" he that he had committed suicide.
Marina Litvinenko, a friend of Mr Berezovsky, told The Daily Telegraph: "From my point of view it is not likely that he committed suicide,"
"He had a lot of enemies. He was an outspoken person and never tried to hide what he thought.
"When I talked to him last he was a little recovered and I believed he would be better. He started to take interest and to ask about my son."
Boris Berezovsky is thought to have been in financial difficulty before his death, after paying out large legal fees over the last few years.
In July 2011, he paid out Britain's biggest ever divorce settlement to his ex-wife Galina Besharova, with some reports suggesting that the deal may have been worth up to £100 million.
ITV News' Neil Connery reports:
Thames Valley Police is continuing to investigate the unexplained death of 67-year-old Russian tycoon Boris Berezovsky.
Thames Valley Police have released a detailed account of the events after Mr Berezovsky was found dead at 3.23pm on Saturday in Ascot, Berkshire.
Crime Officers are currently inside the property carrying out a full forensic examination of the scene.
- An employee of Mr Berezovsky gave an account that he called the ambulance service on Saturday after being concerned for Mr Berezovsky's welfare.
- The employee had not seen him since around 10:30pm on Friday night.
- On Saturday, the employee forced open his bathroom door, which was locked from the inside, and discovered the body of Mr Berezovsky on the floor.
- A paramedic declared him dead at the scene.
- The employee was the only other person in the house when the body was discovered.
- While the paramedic was on scene members of Mr Berezovsky’s family arrived at the property.
- Chemical specialists confirmed that the scene was safe and clear to work in after the paramedic's health and safety device, the personal electronic dosimeter (PED), was triggered as they left the property.
Police revealed today that specialist officers trained in identifying chemical or nuclear threats were called to Boris Berezovsky's home after the paramedic's personal electronic dosimeter (PED) went off.
Thames Valley Police said that PED devices are "used extensively by the emergency services" to test for dangerous levels of radiation.
The PED went off when the paramedic had left the property, after which specialist Chemical, Biological, Radiological and Nuclear officers were called in.
The Deputy Senior Investigating Officer in the investigation into Boris Berezovsky’s death has released the following statement:
We are at the early stages of the investigation and we are retaining an open mind as we progress.
The investigation team are building a picture of the last days of Mr Berezovsky’s life, speaking to close friends and family to gain a better understanding of his state of mind. We are acutely aware of the level of interest into his death and are focused on conducting a thorough investigation as we would with any unexplained death.
– Det Ch Insp Kevin Brownm, thames valley police
It would be wrong to speculate on the cause of death until the post mortem has been carried out. We do not have any evidence at this stage to suggest third party involvement.
There is so far no evidence to suggest any third party involvement in the death of 67-year-old Russian oligarch Boris Berezovsky who was found dead at his Ascot home on Saturday, Thames Valley Police said today.
Police said they have relaxed the cordon around the property of Russian tycoon Boris Berezovsky in Mill Lane in Ascot.
"One small road block remains in Mill Lane outside the entrance to the property's grounds," Superintendent Simon Bowden said. "The roads in the area are open and traffic is flowing freely."
He added: "I would like to take this opportunity to thank the residents in the area for their patience in the initial stages of the investigation and apologise for any inconvenience which may have been caused by the cordon."