Australia's Prime Minister Anthony Albanese has agreed with police assertion that a caravan full of explosives in Sydney was an act of terrorism.

Jewish residents already fear for their lives following an escalating series of antisemitic attacks across the city. Places of worship have been vandalised. A childcare centre near a Maroubra synagogue has been firebombed.

Multiple sites in Sydney's eastern suburbs have been vandalised in what has been labelled as an "appalling and shameful" attack by NSW Premier Chris Minns and "heartbreaking" by the education industry.

Discovery of sprayed slogans including 'Jew dogs' comes day after announcement of apparent bomb plot against Jewish targets amid escalation in antisemitic incidents in Australia

NSW Police were contacted about the caravan, which had power gel explosives with the potential to a cause a "mass casualty event", alongside a document with both antisemitic sentiments and a list of targets.

New South Wales Premier Chris Minns has strongly condemned the “horrifying” antisemitic attack in Sydney’s east during a press conference.

SYDNEY, Jan. 30 (Xinhua) -- The owner of a caravan found filled with explosives in northwest Sydney, the capital city of Australia's state of New South Wales (NSW), is already in police custody, authorities have said.

The van is in police custody and police have made "periphery" arrests and assure there's no related ongoing threat but the main perpetrator is yet to be charged and questions remain over why it took 10 days to disclose the alarming find.

A caravan containing explosives and documents suggesting plans to target the Jewish community has been labelled a terrorist threat by the NSW premier, who said the objects could have led to a "mass casualty event".

Chris Minns says he “can’t promise an end” to the spate of anti-Semitic attacks in NSW, but is vowing strong police responses and to even make changes to the law “to keep people safe”.

The Australian Federal Police and ASIO are now involved in the investigation with police saying there is no ongoing threat to the public.

Prime Minister Anthony Albanese and NSW Premier Chris Minns will formally announce on Sunday the major upgrade to a two-lane semi-rural road.