Meta must change Facebook’s and Instagram’s “addictive design” or face a heavy fine, the EU warned on Friday.

Brussels accused the US tech giant of failing to limit the risks the platforms posed to users, especially children and vulnerable adults, because of features designed to keep them on Facebook and Instagram.

Of particular concern are those like endless scroll, highly personalised feeds and the automatic playback of videos.

“Protecting the physical and mental health of Europeans must be a priority for social media platforms,” EU tech chief Henna Virkkunen said in a statement.

The European Union has in recent months stepped up its efforts to force Big Tech to better protect users online, especially children.