No 10 is worried about retaliation from White House over restrictions on under-16s’ internet use

Ministers have embarked on a concerted lobbying operation to prevent a backlash from the Trump administration to the under-16s social media ban announced by Keir Starmer.

Officials said they had spent weeks trying to reassure senior Trump officials and the US president himself that the restrictions were not specifically aimed at US technology companies.

Government wants to back parents against tech companies though some feel the process has been rushed

Keir Starmer is expected to announce sweeping “Australia-plus” restrictions on under-16s accessing harmful social media apps, a move the government has framed as taking the side of parents against the big technology companies.

A consultation on online safety closed on 26 May, giving ministers just weeks to come up with policies after receiving more than 116,000 responses. Industry sources and child safety advocates have described the process as “rushed” and driven by a political timeline. It is not clear when the ban could come into force.

Sources say hardline measures will also prevent young users from being able to talk to strangers on gaming apps

• Why is the UK launching an ‘Australia plus’ social media ban and how will it work?

Keir Starmer is to ban under-16s from major social media apps such as TikTok, Instagram and X in sweeping restrictions described as “Australia plus”, the Guardian understands.

In a major policy shift far tougher than previously briefed, the prime minister will announce that teenagers will be banned from all the main social platforms. Online products that are not covered by the ban – such as gaming apps – will face new restrictions such as having the option to chat to strangers removed.