New Zealanders on Wednesday scrambled to stock up on essentials as the country’s biggest city prepared to go into lockdown again, following new cases of the coronavirus that ended a 102-day record run without any new infections. Prime Minister Jacinda Ardern announced overnight that she was shutting down Auckland after four new cases of COVID-19 were discovered in the city from the same family, despite the international borders’ being shut to foreigners and returning New Zealanders put in mandatory quarantine. The government has said the source of the new infections was unknown so far. Long queues were reported outside supermarkets in Auckland and across other parts of the country, as people raced to stock up on food and other essential items before the new restrictions took effect from noon. New Zealand’s biggest city will move back into alert level-3 lockdown, which would mean people should stay away from work and school, and gatherings or more than 10 people would again be restricted. The restrictions will be in effect for three days, until Friday.