A snap three-day lockdown of Perth could be extended beyond Monday with Mark McGowan admitting some restrictions, such as mask-wearing, are set to continue. The hardline premier, who shut down the state on Friday night over just two local Covid-19 cases, has warned the rules could even be strengthened if more cases are found. State head of the Australian Medical Association Dr Andrew Miller predicts there is a 50/50 chance the lockdown will be extended as hundreds of close contacts await test results. A snap three-day lockdown of Perth could be extended beyond Monday. Pictured: Residents we...