Russian tycoon's link to alleged corruption in leaked files raises questions for Tory ministers; Leak sheds light on past offshore structure used by Viktor Fedotov, whose UK firm is seeking approval for huge UK infrastructure projectPandora papers news and reaction -- live updatesSee all of our Pandora papers coverage

Byline: Harry Davies, Rowena Mason and Jillian Ambrose in London, and Andrew Roth in Moscow A Russian-born oil tycoon whose firm has made huge donations to the Conservative party secretly [...]