Yulia, 33, and Sergei Skripal, 66, are both fighting for their lives following the poison plot and it has sparked panic among wealthy Russians in Britain
BBC: Russian exiles contacted over safety after tycoon murder
UK police have begun to contact a number of Russian exiles to discuss their safety as they investigate the murder of businessman Nikolai Glushkov.
The 68-year-old's body was discovered at his south-London home on 12 March. A post-mortem examination has found he died from "compression to the neck".
The UK granted Mr Glushkov political asylum in 2010 after he fled Moscow.
The BBC has been told police and the security services have reassessed their view that other exiles are at low risk.
Police say there is no evidence at this stage linking Mr Glushkov's death to the poisoning of former Russian spy Sergei Skripal and his daughter, Yulia, in Salisbury on 4 March.
Read more ....
Update: Russian exiles are contacted by police to discuss their safety after demanding 'nuclear bunker-style' security and bodyguards at their homes after spy poisoning (Daily Mail)
WNU Editor: For the average Russian immigrant in the U.K. .... they are not worried. For those who have a certain "past in Russia" .... no question about it in my mind .... they are all nervous.