a warm welcome to viewers in the uk and around the world. this is bbc news with mark lobel. our top stories: president biden arrives in the uk for the g7 summit — it's his first foreign tour since taking office injanuary. the united states is back and democracies of the world are standing together to tackle the toughest challenges. the eu says its patience is "wearing very thin" with the uk, in talks aimed at avoiding a trade war over border checks with northern ireland. sky—gazers delight — amateur astronomers across the northern hemisphere await a partial eclipse of the sun. those in the arctic will have the best view. and, curfew stops play — the quarter— finals of the french tennis 0pen