The head of the International Olympic Committee's medical team has said that Russia's female track and field athletes are guilty of "systematic doping" and tampering with their urine samples used for doping tests.
Medical chief Arne Ljungqvist said: "I think it is just frustrating to find that such type of cheating -- planned cheating -- is still going on. That's very disappointing to find." 7 female athletes are on provisional suspension.
The scandal comes as a blow to Russia, with one of the athletes favoured to win the 800 and 1,500 metre races.