A ban on Russian athletes competing in the Rio Paralympics was upheld on Tuesday, triggering anger in Moscow after the country lost an appeal against its exclusion over a state-run doping program.

The Court of Arbitration for Sport dismissed an appeal filed by the Russian Paralympic Committee, which sought to overturn the Aug 7 ban by the International Paralympic Committee.

Russian Prime Minister Dmitry Medvedev denounced the doping charges as a "thick and very nasty cocktail" and said the Paralympic ban constituted a "cynical" attempt by rivals to remove strong competitors from the Games.