View image in fullscreenBelfast, Northern IrelandProtesters clash with police on a second night of violence which authorities say far-right activists have whipped up on social media after a man was stabbed by a refugeePhotograph: Henry Nicholls/AFP/Getty ImagesShareView image in fullscreenBarcelona, SpainPope Leo leaves the city’s archbishopric on his way to the Canary Islands, the last stop on his six-day visit to SpainPhotograph: Vatican Pool/Getty ImagesShareView image in fullscreenIstanbul, TurkeyDolphins swim in the Bosphorus as expert teams conduct a marine monitoring