Australia news live: SA and WA expand vaccine eligibility as Victoria finds source of Delta Covid outbreak

Victoria reports two new coronavirus cases, both linked to current outbreaks, as Delta variant traced to returned traveller; Western Australia opens vaccinations to over-30s; South Australia expands vaccine rollout

• Support for Coalition's Covid handling lowest since outbreak began
• Nonsense': Victorian government demands apology after Liberals question Dan Andrews' injury
• Australia's vaccine rollout numbers: progress state-by-state
• Victoria Covid-19 exposure sites; NSW exposure sites
• Victoria's lockdown restrictions explained

9.09am BST

We'll leave it there for tonight.

Here's a look at today's main stories.

8.56am BST

Samantha Maiden of news.com.au reports here that the federal government has issued a military sociologist with a legal demand to prove her new book doesn't pose a national security risk.

https://t.co/sEhWZekYUv can reveal for the first time that the Australian Government Solicitor's group has now written to Dr Crompvoets' publisher, Monash University Publishing's Louise Adler, with a legal letter raising concerns over the new book https://t.co/UOdffmVgU4