The Group of Seven major economies, other U.N. members and the European Union have urged Beijing to help stop North Korean activities aimed at evading U.N. sanctions in Chinese waters.The parties said in a letter to China's U.N. ambassador Zhang Jun that they have concerns regarding the continuing presence of oil tankers "that use your territorial waters in Sansha Bay as refuge to facilitate their trade of sanctioned petroleum products" to North Korea.The signatories also said they are ready to provide Beijing with "satellite imagery that clearly indicates these practices continued to occur…READ FULL ARTICLE