Passengers wear face masks as they sit on a bus in Wellington, New Zealand, Aug. 31, 2020. New Zealand reported nine new cases of COVID-19 on Monday as the largest city Auckland relaxed restrictions but required mask wearing on public transport. Face coverings such as masks became compulsory on public transport across New Zealand from Monday. (Xinhua/Guo Lei)

Passengers wear face masks as they sit on a bus in Wellington, New Zealand, Aug. 31, 2020. New Zealand reported nine new cases of COVID-19 on Monday as the largest city Auckland relaxed restrictions but required mask wearing on public transport. Face coverings such as masks became compulsory on public transport across New Zealand from Monday. (Xinhua/Guo Lei)

Students wearing face masks head for a train station in Wellington, New Zealand, Aug. 31, 2020. New Zealand reported nine new cases of COVID-19 on Monday as the largest city Auckland relaxed restrictions but required mask wearing on public transport. Face coverings such as masks became compulsory on public transport across New Zealand from Monday. (Xinhua/Guo Lei)