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U.S. President Joe Biden and other world leaders arrive in India’s capital of New Delhi for a meeting of G20 economic powers. North Korea says it has launched its first working nuclear submarine although South Korean experts question whether it is operational. In Lebanon, deadly fighting continues in the country's largest Palestinian refugee camp after a truce broke down between supporters and opponents of Palestinian President Mahmoud Abbas. And in Cameroon, militants burn cars and shoot at passengers in separatist violence in a village in the English-speaking southwest.
