Keir Starmer will hold a press conference in Downing Street at just after 8am this morning.
The PM is expected to unveil a landmark package of social media reforms, including a ban for under 16s. It comes after mounting pressure after Australia enforced a ban in December.
The widely-debated measures follow a three-month online safety consultation which closed on May 26 and saw 116,000 responses from parents, industry and young people themselves.
Nine in 10 parents who responded to the consultation demanded Australia-style age limits. More than six in 10 (62%) young people said restricting risky features – such as the ability to send explicit images, livestreaming would make them feel safer. But 72% also said they were worried about feeling left out if restrictions came in.