A man with a bloodied face and a bandage wrapped around his head has described the mass shooting at Bondi Beach as "a bloodbath, it was an absolute massacre".

"I was here with my family, it was a Hanukkah celebration, there were hundreds of people, there were children, there were elderly, families enjoying themselves," human rights lawyer Arsen Ostrovsky told 9News.

"Children, kids at a festival, playing and then all of a sudden it's absolute chaos. There's gunfire, everywhere, people ducking, it was absolute chaos.

LIVE UPDATES: Gunmen were father and son; Sixteen people dead, more injured in Bondi Beach shooting

"We didn't know what was happening, where the gunfire was coming from."

Ostrovsky said he had lived in Israel for the past 13 years and had survived the October 7 attacks there in 2023.

He said he came to Australia only two weeks ago "to work with the Jewish community, to fight antisemitism, to fight this bloodthirsty, ravishing hatred".

"We've lived through worse, we're gonna get through this, and we're going to get the bastards who did this," he said.

READ MORE: Hero sneaks up on Bondi Beach gunman, wrestles weapon from him

READ MORE: What we know about the Bondi Beach shooting

Ostrovsky said he saw one of the gunmen during the ordeal as people fell to the ground around him.

He said his only concern was for his wife and children, who he said had managed to escape.

"I saw at least one gunman … firing randomly and in all directions.

"I saw children fall to the floor, I saw elderly, I saw invalids, it was an absolute bloodbath.

"October 7, that's the last time I saw this. I never thought I'd see this in Australia, not in my lifetime, on Bondi Beach of all places, this iconic place."

If you have been impacted by the terror attack in Bondi there is support available. To contact Lifeline Australia, call 13 11 14 or text 0477 13 11 14. For people under 25 years old, you can contact Kids Helpline at 1800 55 1800. Both of these are available on a 24/7 basis. If you wish to donate blood, you can find your nearest donor centre here.

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A number of people are feared to have been killed in a horror mass shooting at Sydney's Bondi Beach, 9News understands.

Vision from the scene shows two men opening fire from a bridge this evening, shortly before 7pm (AEDT).

Ten people are believed to have been shot.

LIVE UPDATES: People told to take shelter as police respond to reports of shooting in Bondi

9News understands one of the shooters has been arrested, while the other has been shot. 

Police issued an alert just before 7pm, urging the public to avoid the area due to the "developing incident".

"Anyone at the scene should take shelter," NSW Police said.

"Police are on scene and more information will be provided when it comes to hand."

The prime minister has issued a statement about the incident.

"We are aware of an active security situation in Bondi," a spokesperson for Prime Minister Anthony Albanese said.

"We urge people in the vicinity to follow information from NSW Police."

More to come.

A number of people are feared to have been killed in a horror mass shooting at Sydney's Bondi Beach, 9News understands.

The Albanese government is set to move ahead with plans to stop major supermarkets price-gouging customers from next year.

Starting on July 1, the government is set to legislate new standards that could hit guilty parties with fines of up to $10 million.

Treasurer Jim Chalmers said this was a sign the government was putting Australians first.

READ MORE: Search for missing backpacker to resume after breakthrough find of her mobile

"We know that people are under pressure and we want to make sure and we will make sure that supermarkets aren't price-gouging," he said.

It is a move that has garnered support across the political spectrum, with Nationals leader David Littleproud saying he believes it will also protect other industries.

"This is about making sure not just consumers are protected, but also farmers," he said

"There's intimidation and retribution for them."

Whilst supermarkets may cry foul with the new rules, Littleproud is sceptical of their concerns.

LIVE UPDATES: People told to take shelter as police respond to reports of shooting in Bondi

"If the supermarkets haven't done anything wrong under the existing codes of conduct, then there is nothing to fear," he said.

"They only fear it because they've done the wrong thing by you."

The treasurer also announced rules would be introduced that would make it mandatory for large retailers to accept cash for the purchase of essential items.

This includes supermarkets and fuel retailers, but smaller businesses will be exempt from these rules.

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A search for a backpacker missing for more than two years will resume after her phone was found.

Tasmania Police confirmed they would join an independent search for Celine Cremer, a 31-year-old Belgian tourist.

She was reported missing on June 26, 2023, after last being seen on June 17, 2023 in Waratah, a town on the island's north-west.

LIVE UPDATES: People told to take shelter as police respond to reports of shooting in Bondi

She is believed to have gone on a bushwalk at Philosopher Falls, but didn't return.

Her empty white Honda CRV was found in a car park.

A private search party, organised by Cremer's family and friends, was set up over the weekend with the support of police.

They found her mobile phone in the Philosopher Falls area yesterday.

Police are now looking into she may have got lost while on the way back to her car.

READ MORE: Teenager falls to her death while trying to take photo at lookout

"The phone was found in an area that has been extensively searched previously and phone data, as well as the location it was found, supports our theory that Celine may have, using an app on her phone, elected to leave the Philosopher Falls track to take a more direct route back to her car as daylight faded," Inspector Andrew Hanson said.

"We suspect she dropped her phone and continued without it, becoming disoriented in dense terrain."

It's the first sign of Cremer since she went missing, and Tasmania Police will now officially join the search. 

An initial search effort lasted two weeks, but was hampered by winter weather, including sub-zero temperatures, snow, and rain.

READ MORE: Controversial adult film star insists she will visit Australia despite being barred

Hanson said search efforts were postponed today due to weather, but that authorities had a clear plan of attack.

"When the search recommences, we will work together with the independent searchers to specifically re-search the area where the phone was located and the likely route Celine may have taken after losing it," he said.

Hanson said a police liaison officer had informed Cremer's family in Belgium.

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Two women have been killed in a car crash on the NSW Central Coast while on their way home from the Lady Gaga concert in Sydney.

Emergency services were called to the Pacific Highway near Wadalba near Wyong about 2.15am today following reports that a Mercedes sedan and a Kia hatchback had collided.

The driver of the hatchback, a 45-year-old woman, and her passenger, a 38-year-old woman, both died at the scene.

LIVE UPDATES: People told to take shelter as police respond to reports of shooting in Bondi

It is understood the women were friends driving home from the Lady Gaga concert at Sydney's Accor Stadium.

Police believe the Mercedes veered onto the wrong side of the road, resulting in a head-on collision.

The crash caused the sedan to roll several times.

The 49-year-old male driver of the sedan was treated at the scene for arm and leg injuries by paramedics.

He was taken to John Hunter Hospital, where he remains in a serious condition.

The driver will be subjected to mandatory testing.

The road was closed in both directions following the crash.

The highway remains closed in the southbound direction.

READ MORE: Teenager falls to her death while trying to take photo at Sunshine Coast lookout

A crime scene has been set up and police are investigating.

Both cars were seized for forensic examination.

Speed and the manner of driving will be a focus of the investigation police say.

A report will be prepared for the coroner.

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Residents near forest blaze are ready to leave if it starts to threaten their homes.

The deal covers short-haul cabin crew on domestic, Tasman and Pacific routes.

The former Kiwi international posted about his failed attempt to travel across the ditch.

The person was flown to Waikato Hospital for treatment in late afternoon emergency.