Maritime NZ said the trawler Number One Insung went down about 1,000 nautical miles north of the McMurdo Antarctic base with no warning in apparently calm conditions.
A South Korean trawler sank on Monday in icy waters off Antarctica, with five fisherman were dead and 17 others were missing, Maritime New Zealand said.
20 survivors were plucked from the ocean by a nearby ship shortly after the deep-sea fishing boat sank.
Maritime NZ said the trawler Number One Insung went down about 1,000 nautical miles north of the McMurdo Antarctic base with no warning in apparently calm conditions.
"We had no distress signal, at this stage we don't know what caused the vessel to sink," Maritime NZ spokesman Ross Henderson said.
He said New Zealand's rescue coordination centre was not informed of the accident until 1:00pm, about six-and-a-half hours after it occurred.
The waters around Antarctica are notoriously rough but Henderson said conditions Monday consisted of light 10 knot winds and a one meter (3.3 foot swell).
A coastguard spokesman in the southern South Korean port of Busan, where the ship is based, told AFP news agency there were eight Koreans, eight Chinese, 11 Indonesians, 11 Vietnamese, three Filipinos and one Russian on board.
20 survivors were plucked from the ocean by a nearby ship shortly after the deep-sea fishing boat sank.
Maritime NZ said the trawler Number One Insung went down about 1,000 nautical miles north of the McMurdo Antarctic base with no warning in apparently calm conditions.
"We had no distress signal, at this stage we don't know what caused the vessel to sink," Maritime NZ spokesman Ross Henderson said.
He said New Zealand's rescue coordination centre was not informed of the accident until 1:00pm, about six-and-a-half hours after it occurred.
The waters around Antarctica are notoriously rough but Henderson said conditions Monday consisted of light 10 knot winds and a one meter (3.3 foot swell).
A coastguard spokesman in the southern South Korean port of Busan, where the ship is based, told AFP news agency there were eight Koreans, eight Chinese, 11 Indonesians, 11 Vietnamese, three Filipinos and one Russian on board.