G20 leaders failed on Monday to break a deadlock in UN climate talks at a summit in Rio that was dominated by divergences over the war in Ukraine and Donald Trump's impending return to the White House.

Leaders of the Group of 20 major economies meet in Brazil, where discussions on trade, climate change and international security are likely to feature prominently.

Britain's Prime Minister Sir Keir Starmer and other leaders of the G20 pose for a photo of the Global Alliance Against Hunger and Poverty at the G20 summit at the Museum of Modern Art in Rio de Janeiro,