As of 26 January 2007, British officials said police had solved the murder of Litvinenko. They discovered "a 'hot' teapot at London's Millennium Hotel with an off-the-charts reading for polonium-210, the radioactive material used in the killing." In addition, a senior official said investigators had concluded the murder of Litvinenko was "a 'state-sponsored' assassination orchestrated by Russian security services." The police want to charge former Russian spy Andrei Lugovoy, who met Litvinenko on 1 November 2006, the day officials believe the lethal dose of polonium-210 was administered.