Russian media have dismissed Donald Trump's announcement that he will deploy nuclear submarines closer to Russia. Mr Trump said his decision was prompted by “provocative comments” on social media by the former Russian president, Dmitry Medvedev. Mr Medvedev said in a post on X on Monday that President Trump was playing "the ultimatum game" with Russia, and that such an approach could lead to a war involving the United States.

Also in the programme: The world's first legislation to control artificial intelligence starts coming into force in the EU today; and from Gaza, the sixteen-year-old with a dream to become a great violinist.

(Photo: Dmitry Medvedev was Russia's president in 2008-12. Credit: Reuters)