The Russian Olympic Committee announced on Saturday that samples from eight of its athletes tested positive in doping retests from the 2012 London Olympics.

The statement acknowledging the results was posted on the ROC website one day after the International Olympic Committee revealed that retests of 23 athletes who participated in the London Games, representing five sports and six countries, had returned positive results in doping retests.

Russia did not release the names of the athletes who tested positive, but said in the statement that they competed in three sports.

Saturday’s announcement is the latest black eye for the Russian Olympic program ahead of this summer’s Olympics in Rio.

The country’s track and field team has been under suspension by the sport’s international governing body since November 2015, when the World Anti-Doping Agency released a report accusing Russia of running a systemic, “state-sponsored” doping program. The International Association of Athletics Federations is expected to decide in June whether or not to end the suspension before the Summer Games.

Four days ago Tass reported 14 Russian athletes, 10 of them medalists, were retroactively caught doping when their retests from the 2008 Beijing Olympics came back positive.

While the correctional process will take some time due to further retesting of samples, other athletes who feel cheated by doping have already begun to take matters into their own hands. Australian competitive walker Jordan Tallent held his own make-shift medal ceremony this past week and is set to be given an official presentation by the Australian Olympic Committee in June after it was revealed Tallent was defeated in two international competitions, one being the London Olympics, by multiple doping Russian athletes.

The ROC did not release the names of the athletes found doping, as protocol requires the IOC to conclude retests of the athletes’s second sample before naming them publicly.