British home secretary Theresa May: she  announced a freeze on the UK assets of Andrei Kovtun and Dmitry Lugovoy, who is now a Russian member of parliament, after a judge said there was “no doubt” they poisoned Alexander Litvinenko in London in 2006. Photograph: PA Wire

David Cameron has promised tougher action against Russia after a public inquiry found that President Vladimir Putin probably ordered the murder of fo(...)

 Alexander Litvinenko in  2006: Forensic tests  uncovered a trail of  polonium-210 –  which is used in Russia’s nuclear industry –  following the movements of Andrei Lugovoy and Dmitry Kovtun, allowing Robert Owen  to declare in his report that he was “sure” the two men administered the poison that killed Litvinenko. Photograph: PA

As Alexander Litvinenko lay dying in a London hospital in November 2006, neither he nor his doctors understood the nature of his illness. But the form(...)

Marina Litvinenko, widow of murdered ex-KGB agent Alexander Litvinenko, and Russian president Vladimir Putin. Photographs: Ben Pruchnie/Getty Images and Sergei Ilnitsky/AFP/Getty Image

Russian president Vladimir Putin probably approved a Russian intelligence operation to murder ex-KGB agent Alexander Litvinenko, a British inquiry in (...)

Alexander Litvinenko: spy  died at the age of 43, nearly three weeks after drinking tea laced with polonium-210 in London in November 2006. Photograph:  PA

Alexander Litvinenko told his father “Daddy, Putin has poisoned me” from his deathbed, the inquiry into the spy’s killing has heard. In a statement to(...)

 Dmitry Kovtun: changed his mind in March about taking part and asked to appear before the inquiry. Photograph: Pavel Golovkin/AP

One of two Russians accused of murdering ex-KGB spy Alexander Litvinenko with a radioactive poison in London in 2006 was given a final chance today to(...)

Over 90 per cent of managers report recently having experienced major organisational change, compared with just a third a decade ago, we learn in the (...)

Alexander Litvinenko, 43, was poisoned with radioactive polonium-210 while drinking tea at the Millennium Hotel in London’s Grosvenor Square in 2006. Photograph: PA.

The widow of poisoned spy Alexander Litvinenko tonight accused a coroner of abandoning “his search for the truth about Russian state responsibi(...)