Prime Minister Sir Keir Starmer is set to announce a significant expansion of child online safety measures, including plans to restrict access to harmful social media platforms for users under the age of 16.

The proposals are expected to focus on protecting young people from harmful content, addictive platform features and online exploitation. The move follows growing concerns about the impact of social media on children's mental health and wellbeing.

Reports suggest the government has examined international approaches, including Australia's restrictions on under-16 social media access, while also consulting families affected by online harms.

Alongside potential platform restrictions, Starmer has urged technology companies to strengthen protections that prevent children from sharing or receiving explicit images online. The government has warned that further legislation could follow if major technology firms fail to act.

The announcement is expected to form part of a broader strategy aimed at ensuring technology benefits young people while reducing risks associated with social media use.