Dozens of online videos have revealed that schoolchildren are using TikTok in lessons - despite the social media app being branded a 'magnet for paedophiles'.
Fears have been raised about TikTok, which has 500 million users globally and sees teenagers making 15-second clips that often include them miming along to songs.
The app has banned under-13s and introduced ID checks in the US, but there are currently no plans to introduce these safety measures in the UK.
Now teachers and psychologists have said they have worries about the app and how often clips are being made on school property.
This week, dozens of British TikTok users appear to have filmed short videos in their classrooms.
Dozens of clips on TikTok show British schoolchildren filming inside their classrooms (pictured), raising fears about child safety
Others show teenagers dancing in school bathrooms. The NSPCC have raised concerns about live streaming apps being used by paedophiles to groom and abuse youngsters
One group of male dancers and acrobats film all their content on school property, using playground furniture as props.
Other clips show a row of girls in school uniform dancing together in what appears to be a main hall while others have been filmed on desks, in school toilets and surrounded by books in libraries.
One girl even admitted that her teacher caught her filming half way through her video.
Another used the hashtag #bannedfromschool as she danced in her uniform in the girls' bathroom with three friends.
Meanwhile, one teen's film has clearly been shot in a lesson, while two others feature a school library and others show teachers standing by white boards.
One pupil caught filming in the library admits: 'Teacher saw me and now I'm embarrassed help.'
The app has banned under-13s and introduced ID checks in the US, but there are currently no plans to introduce these safety measures in the UK
Andy Burrows, the NSPCC's Associate Head of Child Safety Online, said: 'We know that a disturbing amount of children are being contacted via live streaming apps by abusers using them as a hunting ground'
The NSPCC have raised concerns about schoolchildren being groomed by paedophiles on live streaming apps.
TikTok's creators were forced to introduce age verification after they were fined £4.3million
