Millions under Australia lockdown as global cases hit 12 million

Millions of people in Australia's second-biggest city went into lockdown on Thursday to battle another coronavirus outbreak, as the number of infections worldwide surged past 12 million. Caseloads and death tolls have risen relentlessly in many of the world's biggest nations, with three million confirmed cases in the United States alone. In Melbourne, five million people began a new lockdown just weeks after earlier restrictions ended as Australia battles a COVID-19 resurgence, with residents bracing for the emotional and economic costs.