'Snap Maps' puts users and their snaps onto a map so friends can see where they are and what they are doing. It has raised a lot of concerns amongst child safety experts. The NSPCC advise that young people should set Snapchat to 'ghost mode' which means that no one can see your location.

Click Here Video by Welsh school with subtitles.

An update to Snapchat that shows publicly posted images on a searchable map has raised safety concerns among parents.

Snap Map lets people search for places such as schools and see videos and pictures posted by children inside.

It also lets people locate their "friends" on a map that is accurate enough to determine where people live.