Pope Francis has told European leaders to do more to help thousands of migrants risking their lives to get to the continent. Addressing the European Parliament for the first time, the pontiff referred to an estimated 3,200 migrants who have drowned this year trying to get to Europe. ‘There needs to be a united response to the question of migration. We cannot allow the Mediterranean to become a vast cemetery,’ he said. ‘The boats landing daily on the shores of Europe are filled with men and women who need acceptance and assistance,’ he added, calling on European powers to work together to protect immigrants from human traffickers.  The Pope’s address comes just days after 600 migrants were rescued in the Mediterranean between Sicily and North Africa.