Wellington: New Zealand on Friday extended a national lockdown sparked by a Delta virus outbreak into next week but warned restrictions would last longer in the infection epicentre of Auckland.The Delta cluster emerged in Auckland last week, ending a six-month run without local transmission that had made New Zealand one of the world’s last Covid-free zones. While there were 70 new cases reported on Friday, taking the total to 347, Prime Minister Jacinda Ardern said there were signs the...