The premier of Australia’s biggest state economy New South Wales (NSW), Gladys Berejiklian, resigned on Friday after a corruption watchdog said it was investigating whether she was involved in conduct that “constituted or involved a breach of public trust”. Berejiklian’s shock resignation comes as the state, which has an economy larger than Singapore, Thailand or Malaysia, battles the biggest COVID-19 outbreak in the country and is poised to begin ending months-long lockdowns as Australia sets to reopen international borders in November.