Boris Berezovsky found dead at his Berkshire home

Guardian UK - Police trained in handling chemical, biological and nuclear material have launched a search of the Berkshire home of Russian oligarch Boris Berezovsky, hours after the fierce critic of the Kremlin was found dead.

The circumstances of the 67-year-old's death were unclear, though there were unconfirmed claims that the former power-broker of Russian politics had killed himself at the property in Ascot.  Read more.