Despite the recent U.S. seizure of the North Korea cargo ship 'Wise Honest',... Pyeongyang could still be attempting to export its coal which is an act banned by international sanctions. <br />Analyzing satellite images,... Voice of America reported that.... two large cargo ships were observed at North Korea's Nampo Port on Sunday,... but they were gone by Tuesday.<br />Nampo port is one of the regime's main coal-loading docks.<br />The report added that.... at least seven cargo ships have been coming in and out of Nampo Port between April 16th and May 14th.<br />The Panel of Experts at the UN Security Council reported that North Korea has increased the number of ship-to-ship transfers of coal and oil despite international sanctions. <br />