The International Olympic Committee has ruled not to impose a blanket ban on Russia's athletes from the Rio Olympics over news the country ran a state-run doping program.

The IOC will leave it up to individual sports federations to decide if Russian competitors are clean and can take part. The  announcement follows the World Anti-Doping Agency's call for an all-out ban on the country, following a report that found evidence of widespread state-sponsored doping of Russian athletes at the 2014 Winter Olympics in Sochi.

Earlier, the Court of Arbitration for Sport upheld the International Association of Athletics Federation's ban on Russia's track and field team.