More than 80% of the crew aboard a South Korean destroyer have tested positive for Covid-19

South Korea's military has recorded in biggest cluster of Covid-19 infections to date, with more than 80% of personnel aboard a navy destroyer on anti-piracy patrol in the Gulf of Aden testing positive.

While the 247 cases are not directly linked to new domestic infections, with the destroyer Munmu the Great having left South Korea to start its mission in February, the surge comes as the country battles its worst-ever outbreak of Covid-19 cases at home, with another 1,252 new infections reported for Sunday. The country's Joint Chiefs of Staff said on Monday that just 50 of the ship's complement of 301 personnel had tested negative in an outbreak first reported on July 15. Authorities have begun an operation to airlift them home, while a replacement team will steer the vessel back.