Australia said on Wednesday it will add YouTube to sites covered by its world-first ban on social media for teenagers, reversing an earlier decision to exempt the Alphabet-owned video-sharing site and potentially setting up a legal challenge.

YouTube will be included in Australia's world-first social media ban for children under 16, after the government ditched a previous exemption for the platform. The video sharing site was set to be excluded from the ban - which will limit TikTok, Instagram, Facebook, X and Snapchat and is due to start in December.

The Australian government has announced YouTube will be required to ensure account holders are at least 16 years old starting in December.