 In Kazakhstan the president accepts the resignation of the government after high fuel prices lead to violent protests. Taiwan's Air Force holds an exercise to defend the island's airspace against military aircraft from mainland China. In Australia, tennis star Novak Djokovic says he has a special exemption from COVID-19 vaccination, but it remains unclear if he will be permitted to compete in the Australian Open. And in Nigeria, police say nearly 100 hostages have been rescued after being held by armed groups for more than two months in Zamfara state.