France, June 17 -- The three-day summit of the leaders of Canada, France, Germany, Italy, Japan, Britain and the United States has focused intensely on Trump's deal to end the war with Iran and efforts to pressure Russia into brokering peace with Ukraine.

But on Wednesday the digital sphere will take centre stage, with some European G7 members wanting more security in moves that have irked the United States.

Sam Altman, the head of artificial intelligence giant OpenAI, Anthropic chief Dario Amodei and Arthur Mensch of their European rival Mistral AI will attend lunch with the leaders.

British Prime Minister Keir Starmer announced on Monday that children under 16 will be banned from using social media in the UK, with France also eyeing ...