Vladyslav Heraskevych has previously used his platform to protest against the war in Ukraine

Ukranian skeleton racer Vladyslav Heraskevych claims the International Olympic Committee has banned his helmet featuring images of people killed in the war in his home country, in a decision that "breaks my heart".

The 26-year-old wore the helmet during a Winter Olympics training session in Cortina, and had promised before the Games to use the event as a platform to keep attention on the conflict.

The IOC is yet to confirm publicly if it has banned the helmet.

"The IOC has banned the use of my helmet at official training sessions and competitions," said Heraskevych, who was a Ukraine flagbearer in Friday's opening ceremony, on Instagram