The IOC said Tuesday it was waiting for a report later in the day from the Belarusian National Olympic Committee on the case of sprinter Krystsina Tsimanouskaya, after launching an investigation into an incident that has rocked the Games.

The athlete took refuge in the Polish Embassy in Tokyo on Monday, a day after refusing her team's orders to board a flight home from the Olympic Games. Warsaw has offered her a humanitarian visa.

International Olympic Committee spokesman Mark Adams told reporters the body had spoken to the athlete twice on Monday, that she was in a safe, secure place, and that the IOC needed to know all the facts before taking further action.