Confrontations in Hong Kong have triggered fresh rounds of diplomatic protest .
Australia's again demanding a peaceful settlement, but it also recognises that as many as 100,000 of its citizens could be affected if the violence escalates.
Here's ABC national affairs correspondent Greg Jennett.
For more from ABC News, click here: https://ab.co/2kxYCZY
If you're in Australia, you can watch more ABC News content on iview: https://ab.co/2mge4KH
Go deeper on our ABC News In-depth channel: https://ab.co/2lNeBn2