SEOUL, South Korea - South Korea said five sailors were dead, 17 were missing, and 20 had been rescued after a fishing boat sank in the Antarctic Ocean.

The Foreign Ministry and coast guard officials said the 614-ton ship with 42 sailors aboard sank around 4:30 a.m. Monday South Korean time about 1,400 miles south of New Zealand.

The Foreign Ministry said in a statement that 20 sailors were rescued by another fishing boat operating nearby. There were no immediate details about the missing sailors.

South Korea said it had asked New Zealand to help in the rescue effort. It said the boat carried eight South Koreans, eight Chinese, 11 Indonesians, 11 Vietnamese, three Filipinos, and one Russian.