A secondary school plans to become a phone-free space after pupils were able to view disturbing videos online.
Will Penny, head teacher of Backwell School in Somerset, said he was considering spending £20,000 on magnetic locking pouches so that pupils are not tempted to use their phone during the day.
The move comes as a study by the University of the West of England (UWE) in Bristol found up to 25 per cent of pupils surveyed had a wide range of negative experiences with their smartphones.
Student Bobby, aged 15, said some of his friends are "terminally online" and will monitor their social media throughout the school day.

