For the third time in a week, Russia was stripped of a track-and-field medal Saturday after another athlete tested positive in a reanalysis of doping samples from previous Olympics.

Evgenia Kolodko was disqualified and stripped of the silver medal in the women's shot put from the 2012 London Games after her stored samples came back positive for two banned substances, the International Olympic Committee said.

The IOC asked the IAAF to modify the results and consider further sanctions against the 36-year-old Kolodko, who could face a two-year ban.