The International Olympic Committee (IOC) has opened an investigation into the case of disgraced cyclist Lance Armstrong, who could be stripped of the time trial bronze medal he won at the Sydney Games in 2000.
The IOC added that other riders and "entourages" will also be looked into.
Last week the International Cycling Union (UCI) stripped Armstrong of his seven Tour de France titles after receiving an explanation by the US Anti0Doping Agency over the doping scandal.
However, before making a final verdict, the IOC will wait for the outcome of an independent investigation ordered by the UCI.
"We await the findings of the independent commission which will look into the UCI's role, and the recommendations they will make to ensure a healthy future for cycling," the BBC quoted IOC, as saying.
According to the United States Anti-Doping Agency (USADA), Armstrong's United States Postal Service team ran "the most sophisticated, professionalised and successful doping programme that sport has ever seen", the report said.
All of the American's results from 1 August 1998 were deleted from the record books and the 41-year-old was banned for life, it added. (ANI)