Six medallists from the 2008 Beijing Games had their medals stripped by the International Olympic Committee (IOC) on Wednesday after they tested positive for banned substances in re-tests of their samples, the IOC said.
Volkova who clocked 9:07.64 to claim bronze in women's steeple chase tested positive for banned substance dehydrochlormethyltestosterone (turinabol).
Track and Field had two more positive tests by Spanish hurdler Josephine Onyia and Cuban long jumper Wilfredo Martinez. Both are expected to have their results from Beijing Games annulled.
Uzbeki Soslan Tigiev, who won a wrestling silver in the men's freestyle 74kg event, Ukraine weightlifter Olha Korobka, second in the +75kg category and Belarus weightlifter Andrei Rybakou, second in the 85kg category, Kazakh freestyle wrestler Taimuraz Tigiyev, who won silver in the freestyle, Nastassia Novikava of Belarus, a bronze medallist in the 53kg weightlifting , were among those medalists caught using banned substances.
Sardar Hasanov from Azeri who competed in weightlifting also came positive.