The creepy and potentially dangerous challenge sneaked into YouTube’s Kids section and somehow passed moderation.

Axar.az reports citing Sputnik.

Kim Kardashian West turned to her 129 million Instagram followers in an attempt to raise alarm regarding the creepy " Momo Challenge," which has reportedly influenced children to commit suicides and other harmful deeds.

On her Instagram page, Kim shared a string of heartfelt posts from disturbed parents with her vast follower base. She tagged YouTube directly and asked, " please help."

"Beware! This was just sent to me about what's being inserted in YouTube Kids. Please monitor what your kids are watching!" the social media celebrity wrote.

The so-called challenge or " suicide game" works like this: unknown people posing as " Momo" contact children on WhatsApp messenger, using a creepy sculpture of the Japanese supernatural being ubume, created by a special effects company called Link Factory in 2016. This " Momo" then urges children to perform various requests, saying there will be "consequences" if they refuse. The messages from this account are usually accompanied by scary or gory pictures.

Recently, Momo took to other social media platforms, including Facebook, YouTube and, most disturbingly, YouTube Kids, a section of the site specifically created to be safe for children. However, presumably due to YouTube's machine moderation algorithm, the Momo videos managed to sneak beneath the radar.

What begins as innocent kids ' cartoon may quickly devolve into a sinister video, filled with violence.

In an interview for TMZ, a YouTube spokesperson said that if the videos in question do exist, they would be clear violations of site policies and would be removed immediately.

'Monitor what your kids are watching': Mom-of-three Kim Kardashian warns parents of horrific online Momo suicide game https://t.co/lqJgo6pYME pic.twitter.com/hDk3vhiEFA

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