The Russian anti-doping agency says runners Yelizaveta Grechishnikova and Yekaterina Ishova have been banned two years for doping.
Grechishnikova, who ran in the 10,000 meters at the 2012 London Olympics, has also had all of her results stripped since Aug. 18, 2009.
The anti-doping agency Rusada says the bans and disqualifications were ordered by the All-Russia Athletics Federation.
Details of the doping offenses were not specified.
Rusada says the 29-year-old Grechishnikova's ban expires Oct. 15, 2015.
Ishova had all her results disqualified from July 12, 2011. The 24-year-old runner is banned through Oct. 22, 2015.
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