Paul Moss

My colleague Stephen Nolan has been discussing this issue with Dr Josh Roos.

He's a politics professor at Deakin University in the Australian state of Victoria and says threats against Jews have been growing.

and from different sources.

And you mentioned that the Australian government hasn't done enough.

What more should they have done before now?

Dr John Roos.

In the aftermath of the attack, police have provided more information about the shooters.

The father was foreign-born and arrived in Australia in 1998 on a student visa.

He legally owned several guns and was a member of a shooting club.

He died at the scene.

His 24-year-old Australian-born son is in custody.

What's become clear is the sheer scale of the shooting and the fear it caused, not just among those attending the Hanukkah event, but hundreds of others nearby sent running for their lives.

For the latest on the situation in Sydney, I spoke to our correspondent Phil Mercer, who described a beach scene almost unrecognisable from its normal appearance and mood.

I'm stood on a grassy bank,

overlooking Bondi Pavilion, which is ordinarily a hub for the community.

Today, it is a makeshift memorial for the victims of the Sydney shooting on Sunday.

Flowers are arriving every single minute by people coming down

to pay their respects and to have a brief moment of thought and calm in this sea of chaos that erupted here.

It is beyond this particular bit of park, very quiet.

Bondi Beach mostly has been shut down by the police.