Russian media reported on Wednesday that 15-year-old figure skater Kamila Valieva tested positive for a banned substance. She and her teammates had previously won the gold medal for the team figure skating event earlier in the week at the Beijing Winter Olympics. They beat the United States and Japan, who took home the silver and bronze respectively.

As reported by Reuters, the Russian newspaper RBC was the first to report the failed test. However, it did not cite sources. The Russian Olympic Committee has yet to comment on Valieva's situation. The International Olympic Committee and the International Skating Union also declined comment.

Previously, the medal ceremony was postponed for what was reported as unexplained legal reasons. Now, it appears as though we know the reason there has not been a medal ceremony.

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Valieva reportedly tested positive for a drug called trimetazidine, or TMZ. It works by increasing the blood flow to the heart. The drug was placed on the World Anti-Doping Agency's list of prohibited substances in 2014 and is not cleared for use in the United States.

Valieva became the first woman to ever land quadruple jumps in Olympic competition in helping Russia win the gold medal.

Ironically, Russian athletes have been performing without their flag or national anthem because of previous violations. Instead, they have been competing under the Russian Olympic Committee, with the acronym ROC seen on television.

It's been a very surprising start to the Beijing Winter Olympics thus far, with American skier and gold medal favorite Mikaela Shiffrin yet to finish a race.