MOSCOW (AFP) - Russia's sports minister on Saturday dismissed claims that four Russian gold medallists at the 2014 Sochi Winter Olympics were drug cheats.
The allegations - the latest in a string of doping accusations to rock Russian sport - are made by whistleblower Vitaly Stepanov in an upcoming edition of American channel CBS' 60 Minutes.
In an interview to air in full on Sunday, Stepanov, a former official with the Russian Anti-Doping Agency (Rusada), cites Grigor Rodchenkov, former head of Russia's now-discredited drug testing lab, as telling him that the state's security service officers "tried to control every single step of the anti-doping process in Sochi".
Hosts Russia won 13 gold medals at the Sochi Winter Olympics.
A brief preview of the interview released by CBS reveals no names of suspected dope cheats.
Russian Sports Minister Vitaly Mutko, however, shrugged off the latest allegations as "speculation" and accused Stepanov of trying to tarnish the country's image.
"All his so-called revelations are based on speculation," Mutko told Russia's TASS news agency. "It is obvious that someone wants to harm Russian sport."