South Sudan Leader Cancels Part of China Trip China's Foreign Ministry says the president of South Sudan has canceled the Shanghai leg of his China trip amid the rising threat of war at home. Ministry spokesman Liu Weimin did not clarify Wednesday whether Salva Kiir had cut short his five-day trip or was changing his itinerary. Sudan and South Sudan have been drawing closer to a full-scale war in recent weeks over the unresolved issues of oil revenues and their disputed border. Sudanese warplanes bombed a South Sudanese market and an oil field Monday, killing at least two people, and dropped eight more bombs Tuesday. South Sudan won independence from Sudan last year as part of a 2005 peace treaty that ended decades of war that killed 2 million people.