Sydney news

Many Melburnians spent last night processing the terrifying and deadly events of Friday afternoon. A 26-year-old man is expected to be charged with multiple counts of murder, accused of deliberately driving a stolen car into a lunchtime crowd in the CBD. Overnight a fourth person has died in hospital from injuries sustained in the crash, as the city's emergency departments worked around the clock to treat about 20 injured people.

A young woman who started the nation's first organisation for juvenile arthritis sufferers and a Country Fire Service volunteer are among South Australians to be recognised with Australia Day awards on Monday.

Former world number ones, Serena Williams and Rafael Nadal, French entertainer Gael Monfils and local hope Daria Gavrilova are among the highlights on day six at the Australian Open.

A tribunal finds Brisbane police officer who pushed a disabled driver into a petrol bowser during an arrest was guilty of 'significant misconduct'.

Ridley Corporation announces plans to spend $50 million building a fish feed mill as it battles legal action against Huon Aquaculture.

With echoes of the movie Happy Feet, a tiny chinstrap penguin makes an epic 1,500-kilometre journey to remote Macquarie Island, delighting researchers.

Police say they hope to interview and charge a man in custody today after a car was driven into pedestrians in Bourke Street mall, killing four people and leaving a baby is fighting for its life.

A rampaging Roger Federer delivers a stunning reminder of his class at the Australian Open with a crushing win over Tomas Berdych.

Firefighters contain a large, fast-moving bushfire which was earlier threatening about 60 homes on Queensland's Sunshine Coast.

The Heat needed 18 off the last six balls to beat the Renegades but lost in a final over that featured two sixes, three wickets and four wides.

Bernard Tomic and Ash Barty are knocked out of the Australian Open in quick succession, leaving just one local hope in the singles draw.

Sydney FC stretch their unbeaten A-League streak to 16 games, notching their 12th win and 10th clean sheet to climb eight points clear at the summit.

Four people, including a young child, are killed and more than 20 others injured after a man "deliberately" drives into pedestrians in Melbourne's CBD before he is shot and arrested.

Bernard Tomic and Ash Barty are knocked out of the Australian Open in quick succession, leaving just one local hope in the singles draw.

Witnesses say there was "no hesitation" as a car drove into pedestrians in Melbourne's CBD, sending "people flying like Skittles" and running for their lives in what police believe was a deliberate act.

Four people, including a young child, are dead after a man deliberately drove into pedestrians in central Melbourne. See how the incident unfolded.

A large, fast-moving bushfire steers away from about 60 homes which were under threat on Queensland's Sunshine Coast, but firefighters are yet to bring the blaze under control.

After being rocked by the sarcoma diagnoses given to two of its young players, a Perth cricket club is holding matches across the city to raise awareness about the rare form of cancer.

Pauline Hanson concedes it will be tough to keep her planned field of 60 One Nation candidates on message during the WA election campaign, but says it will be up to voters to make their own decision at the polling booth.

Three people, including a young child, have been killed and 20 others injured after a man deliberately drove into pedestrians in Melbourne's CBD before he was shot and arrested. Police say the incident was not terrorism related.

Michael Fullilove, executive director of the Lowy Institute for International Policy, on what to expect from a Donald Trump presidency.

Eyewitness and CCTV footage show the minutes leading up to and during the horrific incident in which a driver veered his car into pedestrians.

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Melbourne is in mourning tonight after three people were killed, and at least 20 injured, when a car drove into pedestrians. Victoria Police Chief Commissioner Graham Ashton joins 7.30 to discuss the tragic incident.

The WA Premier says there will be just one leaders' debate ahead of the March state election, but Opposition Leader Mark McGowan accuses him of being "scared" and calls for three.

From the dissolution of the wheat export single desk to the introduction of GM technology, Leon Bradley played a part.

The mother of fatally injured toddler Mason Jet Lee and her partner are facing new child cruelty charges for allegedly failing to provide adequate medical assistance to the 21 month old.

Cattle stations in the Kimberley region of Western Australia have an extremely wet start to 2017.

Proposed industrial action by nurses at two of Adelaide's major public hospitals is called off after the union and SA Health are able to come to an agreement on the closure of a number of beds.

Meet the people behind the helicopters and planes which helped control the raging Tarago and Sutton grassfires over the past week.

Three people, including a young child, have been killed and 20 others injured after a man deliberately drove into pedestrians in Melbourne's CBD before he was shot and arrested. Police say the incident was not terrorism related. Follow for live updates.

Two rare fish species, only sighted a handful of times in the past two decades, are discovered during a fish monitoring program in South Australia.

Queensland researchers are optimistic a world-first trial will revolutionise the recovery for people with new spinal cord injuries.

International language and training schools are being urged to assist foreign students affected by an alleged financial scam. Police and the Overseas Student Ombudsman are investigating a Brisbane-based international student agency, for allegedly taking money from around 100 students in Latin America, but failing to pay for their tuition enrolments. Some in the industry fear it could damage Australia's reputation as a study destination.

Our reporter Tom Nightingale is at the Victoria police headquarters. He says things are solely returning to normal after a car killed and injured pedestrians in central Melbourne today. Earlier, the CBD was brought to a standstill, with cars, pedestrians and trams all stuck as emergency crews dealt with the aftermath of the crash.

Both world number ones, Andy Murray and Angelique Kerber, are through to the fourth round of the Australian Open after straight-sets wins.

Mayor John Bowler says Liquorland and BWS outlets in Kalgoorlie CBD are serving alcohol to itinerants responsible for street violence.

Josh Frydenberg gives his approval to the controversial $900 million coal mine expansion on Queensland's Darling Downs, but the project has more hurdles to clear before it can go ahead.

Caleb Ewan says he "couldn't have asked for a better start to the year" after claiming yet another stage win in the Tour Down Under.

Cattle stations in the Kimberley region of Western Australia have an extremely wet start to 2017.

Mike Baird's parliamentary secretary Catherine Cusack says social media is eating out the middle ground, and changing the nature of democracy.

Witnesses describe the horrifying moment a man deliberately drove his car into a crowd of pedestrians near Bourke and Queen streets in Melbourne's CBD, in an incident police say is related to an earlier stabbing.

The Queensland Museum celebrates its 155th anniversary by highlighting the most interesting objects that make up its vast collection.

A fast-moving bushfire is heading towards a number of small Sunshine Coast communities in the Coolum area, with authorities telling residents to leave the area now if their path is clear.

Three people, including a young child, have been killed and 20 others injured after a man deliberately drove into pedestrians in Melbourne's Bourke Street mall before he was arrested. Police say the incident was not terrorism related. Follow for live updates.

Defending champion Angelique Kerber advances to the fourth round of the Australian Open after seeing off Kristyna Pliskova in straight sets.

An 18-year-old woman avoids a prison term for organising an out-of-control party in the Perth suburb of Yokine that was advertised on social media and required people to pay to attend.

Tasmania's north-east has escaped predicted flash flooding as a low pressure system crosses the top of the state.

Extreme levels of ultraviolet radiation across the south east coast of WA results in a spike in serious sun burn among infants, and at least one case of snow blindness.