France, Oct. 26 -- Teens can be shown self-harm and suicide content on TikTok within minutes of joining the app, Amnesty International has warned, as families in France pursue legal action and MPs examine the platform's impact on young users.

A French teenager called Emma (not her real name) told RFI she was quickly drawn into toxic content.

Two years ago, the now 18-year-old installed the app on her phone for the first time. At first, the videos matched the interests she had selected. But after a few minutes, a music video caught her attention.

"The song talked about the struggles the singer faced with mental distress. Since I stayed on the video for quite a while, I was shown more like it. That is when I started falling into that spi...