Interpol has joined Litvinenko poisoning inquiry
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International police force Interpol is helping coordinate the investigation into the poisoning of Russian former spy Alexander Litvinenko that now involves forces in Germany, Russia and Britain.
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LONDON, Dec. 6 -- British authorities announced Wednesday that they are officially treating the fatal poisoning of former Russian spy Alexander Litvinenko as murder and have found traces of a radioactive substance at the British Embassy in Moscow.
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Russian prosecutors launched their own  murder investigation on Thursday into the death in London from  radiation poisoning of Russian ex-spy Alexander Litvinenko, in  parallel to a British probe already under way.
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Russia on Monday cleared the way for  British detectives probing the mystery poisoning of former KGB  spy Alexander Litvinenko to visit Moscow, and promised to help  their investigation.
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KIEV, Ukraine, Sept. 22 -- Ukrainian prosecutors said Wednesday they had opened a criminal investigation into the alleged poisoning of a leading candidate in presidential elections scheduled for next month.
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Mario Scaramella, who met with ex Russian spy Alexander Litvinenko on the day he fell ill, said he had five times the amount of the radioactive substance polonium considered deadly in his body, as British police officers prepared to travel to Russia to continue their inquiry.
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Russian detectives could fly to London  by the end of the week to conduct their own investigation into  the murder of ex-Russian agent Alexander Litvinenko, the  Interfax news agency reported on Monday.
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British police, in Moscow as part of  their probe into the Litvinenko poisoning, seemed set to see  star witness, ex-KGB agent Andrei Lugovoy, on Wednesday, one of  his associates said.
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An Italian contact of former Russian spy Alexander Litvinenko who was apparently poisoned by radioactivity was said to be &quot;well&quot; in hospital,  despite exposure to the same substance.
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Russia has received an extradition request from Britain for an ex-KGB agent wanted in the murder of Alexander Litvinenko, Interfax quoted a spokesperson for the prosecutor general as saying Monday.
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British police said on Wednesday they  were now treating the death of poisoned former Russian spy  Alexander Litvinenko as murder, raising the stakes in an  investigation that has extended from London to Moscow.
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Police are piecing together evidence on how Russian former spy and Kremlin foe Alexander Litvinenko may have been fatally poisoned.
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Britain will open a formal inquest this week into the poisoning death of former Russian spy Alexander Litvinenko, local government officials said Monday.
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Officers investigating the death of ex-spy Alexander Litvinenko pursue inquiries in London and Moscow.
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British police said on Wednesday they were now treating the death of poisoned former Russian spy Alexander Litvinenko as murder, raising the stakes in an investigation that has extended from London to Moscow.
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Britain's senior law enforcement official said Sunday an inquiry into the death of a former KGB agent had expanded overseas, and a U.S.-based friend of the former agent said he told police the name of the person he believes orchestrated the poisoning.
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Officials will investigate the apparent poisoning of Ukraine's opposition leader Viktor Yushchenko.