"Momo has been heavily linked with apps such as Facebook, WhatsApp, YouTube, and YouTube Kids".
While its creator is not affiliated in any way with the game, the Momo creation and accompanying challenges have increasingly been edited into videos designed for young children.
"As creepy as she looks, "Momo" isn't going to crawl out of your child's phone and kill them".
Dymchurch Primary School in Romney Marsh urged parents to read up on the "alarming game" and check whether their children are playing it.
Anxious parents who have experienced it with their children are urging other parents to take caution.
And technology experts say that's the real point of all the rumors surrounding the Momo challenge.
Gatland urges Wales to 'build further' after beating England
It all conspired to give relief to England , who grabbed their first try-scoring chance, from a Welsh turnover. This match reminds me of 2013 when England were coming for the Grand Slam and Wales put 30 points on them.
In the US, Brittany Roussell, of New Orleans, Louisiana, shared a video of her six-year-old talking about seeing the Momo footage to raise awareness about the disturbing challenge, the Daily Mail reported.
Simon Harrison, head teacher at Stubbington's Crofton School said: 'This whole situation highlights the bigger narrative of social media companies and the extent to which they can monitor their content.
Just like any urban legend or horror story, the concept can be quite frightening and distressing for young people.Whilst this may seem obvious, it's important for you to reiterate to your child that Momo is not a real person and cannot directly harm them.
We millions of videos available for viewing, the impact on kids could be in the hundred's of thousands.
This image has now begun to pop-up in the middle of child-orientated YouTube videos such as Peppa Pig.
The face of Momo originated from a sculpture by a Japanese artist.
"Our advice as always, is to supervise the games your kids play and be extremely mindful of the videos they are watching on YouTube", the Police Service of Northern Ireland (PSNI) said on Facebook this week (Warning: disturbing photo).
"When we questioned my little girl, she said she had watched it and that it scared her so didn't watch it again, but my worry is that she didn't come and tell me straight away".
It has been linked to a number of deaths in other countries and has lead to fresh concerns that it is becoming popular among children and teenagers here.