Olympian Huang Yu-ting could be punished after she posted a video on social media last month, showing her training in what appeared to be a Chinese suit.
Also at the Games, China's Eileen Gu got her maiden Olympics off to a dream start as the US-born teenager landed a tricky jump to become the freeski Big Air champion.
Sadowski Synnott dazzled the judges by grinding along rails, leaping off huge jumps and sliding along the roof of a traditional Chinese house made from snow en route to the gold.
The Olympic flame burned over the Beijing Winter Games stadium to conclude the opening ceremony.
Researchers at Citizen Lab warn that athletes attending the Winter Games may be subject to digital surveillance.
Japan and Britain said they will discuss a diplomatic boycott against the 2022 Beijing Winter Olympics while Italy decided not to boycott the event.
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