A stunt being shared on viral video platform, TikTok has caused serious injury among teenagers in the UK and US.
The skull-breaker challenge involves two people kicking the legs from under a third, making them fall over.
US prosecutors have charged two youngsters with aggravated assault over the prank and warned parents to stop their children from taking part.
TikTok said it would remove such content from its platform.
In an updated post to its newsroom, TikTok said: “We do not allow content that encourages or replicates dangerous challenges that might lead to injury.
“In fact, it’s a violation of our community guidelines and we will continue to remove this type of content from our platform.
“Nobody wants their friends or family to get hurt filming a video or trying a stunt.
“It’s not funny – and since we remove that sort of content, it certainly won’t make you TikTok famous.”
TikTok urged users to report videos containing the challenge.
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