New Zealand has made masks mandatory from Thursday for users of public transport in Auckland as well as on all domestic flights.
It comes after a new coronavirus infection was reported in the community last week.
According to the authorities, the positive test in a student was linked to a known case from a border isolation facility, suggesting less risk of a wider unseen spread.
"Adding mask-wearing to the toolbox of measures against the virus is a sensible precaution and the time is right to make the move," Health Minister Chris Hipkins told a news conference on Monday.
The rules take effect on Thursday for travellers older than 12 on public transport in and out of Auckland. Taxi and Uber drivers must also wear masks, although their passengers have been exempted.
Also exempt are children going to and from school, Hipkins said, adding that police could enforce the rules as a last resort.
Last week, the government said it was also considering mandatory use of a COVID-tracing app before entry to large events and hospitality venues.
With 1,645 infections and 25 deaths, New Zealand ranks among the lowest in the world in terms of virus fallout.
The UN Refugee Agency (UNHCR) and the UN Office for the Coordination of Humanitarian Affairs (OCHA) have sounded the alarm over severe funding shortfalls that are hindering life-saving humanitarian aid in countries including Nigeria, Burundi, and Colombia.
A number of people were killed and multiple others were injured in Vancouver after a driver drove into a crowd at a Filipino street festival in the western Canadian city, police said on Saturday.
Presidents, royalty and simple mourners bade farewell to Pope Francis on Saturday at a solemn funeral ceremony, where a cardinal appealed for the pontiff's legacy of caring for migrants, the downtrodden and the environment to be kept alive.
US President Donald Trump and Ukrainian leader Volodymyr Zelenskyy, in Rome for the funeral of Pope Francis, met one-on-one in a marble-lined Vatican basilica on Saturday to try to revive faltering efforts to end Russia's war with Ukraine.