A second Russian athlete has failed a doping test at the Pyeongchang Games, a day before the International Olympic Committee's executive board is to decide whether to reinstate the country for Sunday's closing ceremony.
Russian Bobsled Federation president Alexander Zubkov says a drug-test sample that pilot Nadezhda Sergeeva gave Sunday was positive.
The Russian delegation at the Pyeongchang Olympics said in a statement that the substance found was trimetazdine, a medication used for angina sufferers which is listed by the World Anti-Doping Agency as a banned substance affecting the metabolism.
Zubkov said Sergeeva "confirms she took no such medication and the team confirms she was not issued any medication."
He also said a sample she had given five days earlier was clean.
Sergeeva's crew finished 12th in the women's bobsled competition on Wednesday.
Russian curler Alexander Krushelnitsky was stripped of his mixed doubles bronze medal earlier this week after also testing positive for a banned substance.
— with files from The Canadian Press