Lady Gaga suffers a concussion after smacking her head with a pole during a show in New Zealand.
Suffering from pneumonia, Tongan Prime Minister ʻAkilisi Pōhiva is rushed from hospital in Nukuʻalofa to one in Auckland, New Zealand, where he was treated for a liver condition earlier this year. According to a government spokesperson, Pōhiva is in a "very serious" condition.
New Zealand Prime Minister Jacinda Ardern announces a ban of all military-style semi-automatic weapons, assault rifles and high-capacity magazines following the Christchurch mosque shootings. An amnesty is in effect for people who return their guns.
Deputy Leader of the Australian Greens Scott Ludlam resigns as a Senator after discovering that he holds dual citizenship with New Zealand, making him electorally ineligible under Section 44 of the Constitution of Australia.