LONDON — There was no evidence to suggest anyone else was involved in the death of Boris Berezovsky, the self-exiled Russian tycoon who went from Kremlin kingmaker to fiery critic, British police said Sunday.
With an investigation under way, police are treating the death of Berezovsky — who fled to Britain in the early 2000s after a bitter falling out with Russian President Vladimir Putin — as unexplained. But the former oligarch survived assassination attempts and faced financial difficulties, prompting speculation as to whether his death was part of a conspiracy — or suicide.
Police said Sunday it would be wrong to speculate on Berezovsky’s cause of death pending the results of an autopsy.
Police released some details on the circumstances that triggered their investigation, saying a device measuring exposure to radiation was triggered at the scene of death, a home in Ascot, about 25 miles west of London.
Chemical and radiation experts were called to the home, but nothing of concern was found, police said.