South Korean authorities have seized a Panama-flagged vessel suspected of transferring oil products to North Korea in violation of international sanctions.<br/><br/>A customs official said that the ship was seized at Pyeongtaek-Dangjin port without elaborating. The port is on the west coast south of Incheon. <br/><br/>The ship can carry 5,100 tonnes of oil and has a crew mostly from China and Myanmar, adding that South Korea's intelligence and customs officials are conducting a joint probe into the vessel. <br/><br/>The official did not say when authorities moved in, but the seizure was the second to be revealed within just a few days. South Korea said on Friday that in late November it had seized the Hong Kong-flagged Lighthouse Winmore, which is suspected of transferring as much as 600 tons of oil to the North Korea-flagged Sam Jong 2.<br/>''''