# The former FSB officer Alexander Litvinenko was assassinated in London in 2006 with polonium-210, in an operation carried out by Russian agents and probably approved at the top of the Russian state **Verdict: Proven.** The poisoning itself is not in dispute: Litvinenko died in a London hospital on 23 November 2006 from acute radiation syndrome caused by polonium-210, an extremely rare radioactive isotope. The claim we rate is the attribution. A UK public inquiry chaired by Sir Robert Owen concluded in January 2016 that two Russians, Andrei Lugovoi and Dmitry Kovtun, poisoned Litvinenko, that they were probably acting on behalf of the FSB, and that the operation was probably approved by FSB director Nikolai Patrushev and by President Vladimir Putin. In 2021 the European Court of Human Rights, in Carter v. Russia, found it established beyond reasonable doubt that Lugovoi and Kovtun carried out the killing as agents of the Russian state. These are the findings of an official inquiry and an international court, not this site's freelance accusation; the two named men deny involvement and no court has convicted anyone, since Russia has refused to extradite them. Category: Government & Intelligence · Era: 2000s · First circulated: Immediately after the poisoning in November 2006, when Litvinenko's own deathbed statement accused President Putin, and British investigators traced a trail of polonium-210 across London; the state-assassination account has been the mainstream reading since, and was formally endorsed by the 2016 Owen Inquiry and the 2021 European Court of Human Rights · Believed by: The mainstream view among British investigators, a UK statutory public inquiry, the European Court of Human Rights, and Western governments, who treat the case as a state-sponsored assassination on British soil rather than as a fringe theory. Russia rejects the findings. URL: https://theconspiratory.com/theory/litvinenko-poisoning ## Summary On 1 November 2006, Alexander Litvinenko, a former officer of Russia's Federal Security Service (FSB) who had defected to Britain and become a fierce public critic of the Kremlin, drank green tea at the Pine Bar of the Millennium Hotel in Mayfair with two Russian contacts, Andrei Lugovoi and Dmitry Kovtun. Within hours he fell violently ill. He died three weeks later, on 23 November, the first known victim of deliberate polonium-210 poisoning. In a statement dictated from his deathbed, Litvinenko accused Vladimir Putin of ordering his death. British police, following a radioactive trail left across hotels, restaurants, and aircraft, identified Lugovoi and Kovtun as the men who administered the poison. This case file separates the record (a fatal polonium poisoning, ruled an unlawful killing) from the claim it rates (that Russian agents carried it out on behalf of the FSB, with approval reaching the Russian president), which is the conclusion of the 2016 Owen Inquiry and the 2021 European Court of Human Rights and is rated substantiated, with the genuine limits noted. ## The claim That Litvinenko was deliberately assassinated with polonium-210, that the poison was administered in a pot of tea at a London hotel by Andrei Lugovoi and Dmitry Kovtun, and that the two men acted not on their own account but on behalf of the Russian FSB, in an operation that was probably approved at the highest levels of the Russian state, including by President Putin. ## Origin and timeline - 2000: Litvinenko, a former FSB officer who in 1998 had publicly alleged that his superiors ordered him to assassinate the oligarch Boris Berezovsky, flees Russia and is granted asylum in Britain. In London he writes books and articles accusing the FSB of staging terrorist attacks and other crimes, and becomes a persistent, highly personal critic of President Putin. - 2006-11-01: Litvinenko meets Andrei Lugovoi and Dmitry Kovtun at the Pine Bar of the Millennium Hotel in Grosvenor Square, Mayfair, and drinks green tea from a pot at the table. Investigators later conclude the tea had been laced with polonium-210. Litvinenko falls seriously ill that night. - 2006-11-03: Litvinenko is admitted to Barnet General Hospital, and is later transferred to University College Hospital in central London as his condition deteriorates. Doctors are initially baffled by the cause of his acute illness. - 2006-11-23: Litvinenko dies, aged 43. Tests identify the cause as polonium-210, a rare radioactive isotope. In a statement dictated days earlier and released after his death, he directly accuses President Putin of responsibility. - 2006-11: Investigators detect a trail of polonium-210 contamination at sites Lugovoi and Kovtun had visited, including hotels, a restaurant, an office, and aircraft that flew between London and Moscow, physically linking the two men's movements to the poison. - 2007-05: The Crown Prosecution Service announces there is sufficient evidence to charge Andrei Lugovoi with murder and formally requests his extradition from Russia. Russia refuses, citing a constitutional bar on extraditing its citizens. Kovtun is later also sought. Both men deny any involvement. - 2015: A UK statutory public inquiry, chaired by Sir Robert Owen and able to consider secret intelligence in closed session, holds hearings into Litvinenko's death after years of legal wrangling over whether such an inquiry would take place. - 2016-01-21: The Owen Inquiry publishes its report. It concludes that Lugovoi and Kovtun poisoned Litvinenko, that they were probably acting on behalf of the FSB, and that the operation was probably approved by FSB director Nikolai Patrushev and by President Putin. The Kremlin dismisses the findings. - 2021-09-21: The European Court of Human Rights rules in Carter v. Russia that Russia was responsible for Litvinenko's assassination, finding it established beyond reasonable doubt that Lugovoi and Kovtun killed him while acting as agents of the Russian state, and orders Russia to pay his widow Marina 100,000 euros. Russia calls the ruling unfounded. ## The evidence, claim by claim - Claim: Litvinenko was killed by polonium-210, and this is settled fact rather than theory. Evidence: This is firmly established. Litvinenko died from acute radiation syndrome caused by polonium-210, confirmed by laboratory testing before and after his death; he is generally described as the first known victim of deliberate polonium-210 poisoning. Published scientific and medical accounts of the case reconstruct the dose and the radioactive contamination in detail. Polonium-210 is not something a private individual can casually obtain: it is produced in nuclear reactors, which is itself part of why investigators looked toward a state actor. - Claim: Lugovoi and Kovtun were the men who administered the poison. Evidence: This is the conclusion of the police investigation, the Owen Inquiry, and the European Court of Human Rights. A trail of polonium-210 contamination followed the two men's movements around London and onto the aircraft they took to and from Moscow, and the highest readings pointed to the Pine Bar teapot. Owen said he was sure Lugovoi and Kovtun had placed the polonium in the pot; the ECHR found it established beyond reasonable doubt that the pair carried out the assassination. Both men deny it, and because Russia will not extradite them, no criminal court has tested the case against them by conviction. The forensic attribution to the two men is nonetheless as strong as the case gets short of a trial. - Claim: The two men were acting for the Russian state, not on their own initiative. Evidence: This is the core claim we rate, and it rests on official findings. The Owen Inquiry concluded there was a strong probability that Lugovoi and Kovtun acted under FSB direction, noting they had no personal motive and were highly unlikely to have obtained polonium-210 on their own. The ECHR found a strong prima facie case that they acted on the direction or control of the Russian authorities, which Russia did nothing to rebut, and held Russia responsible under the right-to-life provisions of the European Convention. The honest limit is that these are civil and inquisitorial findings reached to their own standards, informed in Owen's case partly by closed intelligence the public cannot see, rather than a criminal conviction. - Claim: The operation was approved at the top of the Russian state, including by President Putin. Evidence: This specific finding belongs to the Owen Inquiry, and its wording matters: Owen concluded the FSB operation to kill Litvinenko was 'probably approved' by FSB director Nikolai Patrushev and 'also by President Putin.' That is a considered probabilistic judgment by a senior judge with access to secret material, not a claim of documentary proof, and Owen presented it as such. The ECHR's 2021 judgment held Russia responsible as a state but did not need to, and did not, individually adjudicate Putin's personal role. So the attribution to the state is strongly supported; the further step naming Putin personally is the inquiry's reasoned probability, which is how this file reports it. - Claim: The absence of any conviction shows the state-assassination account cannot really be proven. Evidence: This confuses a specific legal outcome with the wider evidentiary picture. It is true that no one has been convicted, because the two suspects are in Russia and Russia refuses to extradite them, so a criminal trial has never taken place. But a British public inquiry with access to intelligence, and an international court applying the beyond-reasonable-doubt standard to the facts before it, both concluded the killing was a Russian state operation. The failure to prosecute reflects Russia's shielding of the suspects, not a weakness in the evidence, which is precisely why the inquiry and the court could reach firm conclusions while the courtroom docket stayed empty. - Claim: Litvinenko's own deathbed accusation of Putin is proof the president ordered it. Evidence: Litvinenko did dictate a statement, released after his death, accusing President Putin of responsibility, and it is a genuine and striking part of the record. But a victim's dying accusation, however sincere, is not by itself proof of who gave an order; it is evidence of what Litvinenko believed. The weight behind the attribution comes from the forensic trail, the inquiry's analysis, and the ECHR judgment, not from the deathbed statement alone. Marina Litvinenko later said she felt her husband's deathbed words had been vindicated by the inquiry, which is a fair reading of how the case developed, but the statement is best treated as a powerful part of the story rather than as independent proof of the chain of command. ## Why people believe it - The forensic trail is unusually concrete. Polonium-210 leaves a measurable radioactive signature, and investigators were able to map it across specific hotels, restaurants, and aircraft, giving the account a physical evidence base most assassination claims lack. - The poison itself points to a state. Polonium-210 is a reactor product that is extraordinarily difficult for a private actor to obtain, so its use narrows the field of plausible culprits toward an entity with access to nuclear materials. - Official bodies confirmed it. Unlike most conspiracy claims, this one rests on a UK statutory public inquiry and a judgment of the European Court of Human Rights, so believers are pointing at formal findings, not around them. - The motive is clear and documented. Litvinenko had spent years accusing the FSB and Putin personally of grave crimes, giving the Russian state an evident interest in silencing him, which makes the attribution feel like the settling of a known score rather than a leap. - It fits a pattern that later grew. The 2018 Novichok poisoning of Sergei Skripal in Salisbury, also attributed by Britain to Russian agents, reinforced the perception that Russia was willing to pursue perceived traitors on British soil with exotic weapons. ## Open questions - No criminal court has ever convicted anyone, because Russia refuses to extradite Lugovoi and Kovtun, both of whom deny involvement. The attribution rests on an inquiry and a human-rights court rather than on a criminal verdict, and barring a change in Russia that is unlikely ever to be tested at trial. - The Owen Inquiry's finding that the operation was 'probably approved' by Patrushev and Putin drew in part on closed intelligence heard in secret session, which the public and the accused cannot examine. The conclusion is a senior judge's reasoned probability, not a fully public documentary chain, and reasonable readers can weigh that caveat differently. - Exactly how and where the polonium was introduced, and the precise sequence of what appear to have been more than one attempt in October and November 2006, has been reconstructed from contamination patterns and testimony rather than from a confession, leaving some operational details inferred rather than directly attested. - Russia has consistently rejected the British and European findings as politically motivated and has offered its own competing narratives, none of which has gained acceptance outside Russia, but the absence of any cooperative Russian investigation means one side of the documentary record remains permanently closed. ## Sources - The Litvinenko Inquiry: report into the death of Alexander Litvinenko, Sir Robert Owen / GOV.UK (UK Government) (2016): https://www.gov.uk/government/publications/the-litvinenko-inquiry-report-into-the-death-of-alexander-litvinenko - The Litvinenko Inquiry: Report into the death of Alexander Litvinenko (HC 695), Sir Robert Owen, chairman (full report PDF) (2016): https://assets.publishing.service.gov.uk/media/5a8055c340f0b62302692e48/The-Litvinenko-Inquiry-H-C-695-web.pdf - Case of Carter v. Russia (application no. 20914/07), judgment, European Court of Human Rights (HUDOC) (2021): https://hudoc.echr.coe.int/eng?i=001-211972 - Russia was responsible for the assassination of Aleksandr Litvinenko in the UK (press release, Carter v. Russia), European Court of Human Rights (2021): https://hudoc.echr.coe.int/eng-press?i=003-7125276-9653243 - Russia Fatally Poisoned Alexander Litvinenko In London, A Court Concludes, NPR (2021): https://www.npr.org/2021/09/21/1039224996/russia-alexander-litvinenko-european-court-human-rights-putin - Russia responsible for killing ex-KGB officer Litvinenko: ECHR, Al Jazeera (2021): https://www.aljazeera.com/news/2021/9/21/russia-responsible-for-litvinenko-killing-echr-rules - Putin 'probably approved' murder of ex-spy Litvinenko, British inquiry says, France 24 (2016): https://www.france24.com/en/20160121-putin-probably-approved-london-murder-litvinenko-british-inquiry - Poisoning of Alexander Litvinenko, Wikipedia: https://en.wikipedia.org/wiki/Poisoning_of_Alexander_Litvinenko Rated by The Conspiratory, a neutral, sourced encyclopedia of conspiracy theories. Full page: https://theconspiratory.com/theory/litvinenko-poisoning