Janes.com on 22nd February reported that Japan spotted a North Korean-flagged tanker apparently accepting an unknown cargo from a smaller vessel of unknown nationality in the East China Sea on 16th February. The smaller vessel had the designation Min Ning De You 078 written on it in Chinese characters. Japan identified the North Korean-flagged tanker as Yu Jong 2, and said the 2 ships had been spotted on the high seas (around 250 km off Shanghai) by a maritime reconnaissance aircraft.
Meanwhile, KYC 360 reports –
China probing possible violation of UN sanctions on North Korea