Sydney's COVID-19 cluster has grown to nine cases, prompting new restrictions across large parts of the city; an emergency National Cabinet meeting will be held this morning with concerns for the COVID vaccine rollout on the agenda; and this week marks 24 years since Australian teacher Marion Barter went travelling and was never seen again, with a New South Wales Coroner to try to establish what happened. Barter was the subject of the 7NEWS podcast The Lady Vanishes, which has had more than 8 million streams around the world. Presented by Jodie Speers. More news across the day on 7NEWS.com.au and 7Plus.   See acast.com/privacy for privacy and opt-out information.