A high-ranking North Korean figure appears to be currently visiting China, sources close to the matter said Monday, but it has yet to be confirmed whether that is the country's leader Kim Jong Un.The extra tight security has prompted speculation that an important foreign dignitary is now in the Chinese capital, the sources said.If the dignitary is really from North Korea, the purpose of the trip would likely be to improve bilateral relations that have been strained over Pyongyang's nuclear ambitions, they said.As Beijing has tightened economic sanctions against Pyongyang, the North Korean v…READ FULL ARTICLE