By Hyonhee Shin SEOUL (Reuters) -A ship carrying six South Koreans went missing off Taiwan and a search and rescue operation is under way, Seoul’s foreign ministry said on Friday. Taiwan authorities have said they received distress signals from the Kyoto 1 at around 9:50 a.m. (0050 GMT) on Thursday from a location about 18 miles (29 km) west of the island nation, the ministry said, adding that all six people aboard were South Korean nationals. The Sierra Leone-flagged, 322-ton ship was on its way to Indonesia’s Batam port from the South Korean city of Busan while towing the Kyoto 2 tender vess…