Hong Kong police arrest four over social media postsCalifornia doctor with cancer gets rare lungVaccine maker becomes China's richest man after wealth increases fiftyTauranga bars to close earlier under booze rule changesGreen Party activist puts forward radical manifesto in leadership bidProposal unveiled for new facility combining Nelson's library, civic centre, community hubChildcare subsidies to start from July, families eligible for up to $75 a weekOlivia Munn's breast cancer diagnosis raising awareness for women to seek additional screeningTame Iti brings Haki Ātea to Waitangi'No realistic possibility' foreign agency will reveal if spy system used for war