Former FSB officer Alexander Litvinenko was poisoned with polonium-210 in London in November 2006 and died on 23 November 2006. The UK Owen Inquiry (2016) found that FSB operatives Andrey Lugovoy and Dmitry Kovtun carried out the assassination and that Vladimir Putin "probably" personally approved the operation. Po-210 traces were identified at the Millennium Hotel, Itsu sushi bar, and the Pine Bar of the Millennium. Russia denied involvement and refused to extradite Lugovoy, who subsequently became a Russian MP.