Three of the biggest social media platforms are teaming up to address online content that features suicide and self harm, Meta announced Thursday.

The EU Commission requested information on Wednesday from YouTube, Snapchat and TikTok on the parameters used by their algorithms to recommend content to users and their role in amplifying some systemic risks,

The EU executive has started an investigation into social media network practices, given fears that vulnerable people are being fed fake news and content promoting self-harm.

The EU is asking Big Tech companies for detailed information on their content-recommendation algorithms and how they might affect mental health.