Russia says Sochi testing above board

Russia's sports ministry said on Monday it was "certain" about the transparency of its doping controls during the 2014 Winter Olympics in Sochi, and that independent observers had managed the testing operation daily.

The ministry was responding to allegations of a testing cover-up at the Sochi Games that included the use of intelligence agents from the country's Federal Security Service, known as the FSB.

"We are certain about the transparency of doping controls during the Olympic Games," the ministry said in a statement.