A Monday attack on a Fox News crew reporting near the Ukranian capital of Kyiv left two of the network's journalists dead and its correspondent severely injured, the country's Ministry of Defense said on Tuesday.

Killed in the attack were Pierre Zakrzewski, a longtime war photojournalist for Fox News, and Oleksandra Kuvshynova, a Ukrainian journalist. Fox News correspondent Benjamin Hall was seriously injured and remains hospitalised.

"The truth is the target," Ukraine's Ministry of Defence said Tuesday, commenting on the attack of journalists in the Fox News crew.

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Zakrzewski's death was announced by Fox News Media chief executive Suzanne Scott.

Scott said in a memo to employees that he was killed when the vehicle the Fox News crew was traveling in came under fire.

Kuvshynova's death was announced by Anton Gerashchenko, an advisor to the Ukrainian interior minister. Gerashchenko blamed artillery shelling by Russian forces.

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The deaths come as journalists working in Ukraine increasingly find themselves coming under fire. Brent Renaud, an award-winning American documentarian, was killed Sunday in an attack that also injured journalist Juan Arredondo.

A Sky News team released footage earlier this month showing them being violently ambushed.

Scott on Tuesday remembered Zakrzewski as a journalist who was "profoundly committed to telling the story and his bravery, professionalism and work ethic were renowned among journalists at every media outlet."

"He was wildly popular — everyone in the media industry who has covered a foreign story knew and respected Pierre," Scott said.

Scott described Zakrzewski's talents as vast and said that "there wasn't a role that he didn't jump in to help with in the field – from photographer to engineer to editor to producer.

She said that he "did it all under immense pressure with tremendous skill".

Zakrzewski was a veteran photojournalist who had "covered nearly every international story for Fox News from Iraq to Afghanistan to Syria," Scott said.

He had been reporting from Ukraine since February.

Tributes immediately poured in from Zakrzewski's colleagues at Fox News.

Anchor Bill Hemmer, who broke the tragic news on the channel's air, described Zakrzewski as "an absolute legend" at the network.

Anchor John Roberts said he had worked with Zakrzewski "many times around the world" and described him as "an absolute treasure".

Foreign correspondent Trey Yingst, who is also reporting from Ukraine, wrote on Twitter: "I don't know what to say. Pierre was as good as they come. Selfless. Brave. Passionate. I'm so sorry this happened to you."

Zakrzewski's counterparts at other networks also remembered him.

Clarissa Ward, CNN's chief international correspondent, said she had "the great privilege" of having worked with Zakrzewski and "the even greater privilege of calling him a friend".

"An extraordinary spirit and tremendous talent and one of the kindest, most gracious colleagues on the road," Ward wrote on Twitter.

"Absolutely heartbreaking."

Fox News had just recognised Zakrzewski in December as one of the network's "unsung heroes." He was described at the time as a journalist who "risks his life in war zones to get the story for Fox News."

More than 100 years after the RMS Titanic sunk to its icy grave in the Atlantic Ocean, a "world-first" environmental DNA study is being carried out on the wreck.

OceanGate Expeditions and eDNAtec today announced it will gather DNA water samples (eDNA) through five missions of the 2022 Titanic Survey.

It's hoped the samples will provide a clearer understanding of deep ocean biodiversity as the "unsinkable ship" has formed an artificial reef system.

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The wreck is situated in an unusual position, at a depth of 3800m in what is typically considered an "abyssal plain".

"This is groundbreaking deep-sea research," marine biologist Dr Steve W Ross said, explaining both microscopic and larger animals can be identified through analysis.

"The deeper you go into the ocean, the less knowledgeable we are.

"This study will give us an entirely different view of this one-of-a-kind habitat while also adding substantially to shared deepwater DNA data sets".

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Dr Mehrdad Hajibabaei, an internationally recognised expert in biodiversity genomics and Founder and CSO of eDNAtec, said this is one the "deepest and most ambitious studies" ever undertaken.

"We will generate a complete view of organisms in an ecosystem using high-capacity sequencing platforms that generate billions of genomic sequences," he said.

Disaster struck the Titanic late on the evening of April 14, 1912, when it hit an iceberg.

The ice perforated its steel plates, causing six compartments to flood.

The ship, measuring 269m long, sank in two hours and 40 minutes.

More than 1500 people died in the maritime disaster, with many freezing in the frigid -2.2C waters of the Atlantic.

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A man has been bitten by a crocodile while spear-fishing in a remote Northern Territory community.

The 22-year-old had been fishing around 4am in East Arnhem Land when the crocodile attacked him, injuring his arm and leg.

The man's injuries are not considered life-threatening.

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Police in Nhulunbuy were notified of the incident.

"Due to the remote location of the incident, a community member transported the victim to Birany Birany," Senior Sergeant Xavier McMahon said.

"He was then airlifted to Gove District Hospital, where he remains in a stable condition."

Northern Territory police said the incident was a timely reminder to be aware of crocodiles in the Top End.

A mother-of-seven is fighting for life after her husband allegedly set fire to their home in Melbourne's west while six children, including a baby, were inside.

Police allege 38-year-old Roland Griffiths ignited a flammable liquid, causing the Sutherland Street home in Albanvale to go up in flames before 5.20pm yesterday.

Neighbours told 9News it sounded like a bomb had gone off inside the property and they heard screams.

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Thick, black smoke billowed from the roof as fire engulfed the family home.

It is understood six children, including a nine-month-old baby, were home when the blaze broke out.

A 17-year-old girl and 36-year-old mother Kylie Griffiths – Mr Griffiths' wife – were inside and tried desperately to extinguish the flames.

"My husband was out the front … he heard a big pop and we saw a girl running down the street with her legs burnt," a resident told 9News.

Ms Griffiths suffered critical burns and was rushed to The Alfred hospital.

The teenager also sustained burns and was taken to the Royal Children's Hospital.

More than 25 firefighters battled the blaze, bringing it under control within 30 minutes.

"Firefighters arrived on scene within five minutes to find a single-storey house fully involved in the blaze," a Fire Rescue Victoria statement read.

"At this stage, the fire is being treated as suspicious and the incident has been handed over to Victoria Police to investigate."

Mr Griffiths suffered non-life-threatening injuries and remains at The Alfred hospital under police guard.

Police said all parties were known to each other and the exact circumstances are under investigation by the Arson and Explosive Squad.

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New charges have been laid in the investigation into the alleged murder of Andrew Walsh, whose body was found beneath a slab of concrete at a Brisbane transport depot this month.

A 39-year-old man from Thagoona, west of Brisbane, is alleged to have helped move Mr Walsh's body after he was killed and has been charged with accessory after murder and interfering with a corpse.

The man was refused bail and appeared in Brisbane Magistrates Court today. He is due to front court again on May 9.

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The man is the second to be charged in relation to Mr Walsh's alleged murder.

A 27-year-old man alleged to have murdered Mr Walsh was intercepted at Sydney Airport by Australian Federal Police and has been extradited to Queensland.

Lachlan Griffiths, also believed to be connected to the transport depot, remains missing.

It's believed Mr Griffiths and Mr Walsh, 35, were not known to each other, but had both visited the Coopers Plains transport depot before they disappeared.

"The taskforce was established to merge two separate homicide investigations, which we now know to be linked," Acting Inspector Chris Knight from Queensland Police said.

"Certainly they had common connections."

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Both men has resided in the South Brisbane and Logan districts.

The transport depot remains under investigation, with police urging anyone with information regarding the two men to come forward.

Australians are increasingly getting less bang for their buck at the supermarket as companies gradually downsize their products while keeping prices level.

The sneaky move, referred to by experts as "shrinkflation", is a way companies are able to increase the price of their products without actually having to alter the price tag.

The minor changes in the product sizes mean customers are less likely to notice the reduction, with packaging largely still looking the same, leading to customers paying more for what they get.

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"You don't notice that you're paying more," InvestSMART's Evan Lucas said.

"So it's actually inflation by stealth."

Maltesers fun size bags used to contain 144g of the chocolate treat, but now have just 132g.

Similarly, a Weetbix value pack now just offers 1.2kg of the cereal, when it used to have 1.5kg, and a bag of Smiths chips now contains 170g instead of 200g.

A standard tube of Pringles used to contain 165g of the chips, but now holds just 134g, and there's been even more shrinkage to blocks of Cadbury chocolate. A standard block was once 250g, before being reduced to 200g and then 180g.

Original Tim Tams have 11 biscuits in a pack, but some other new flavours — Chewy Caramel, Choc Mint, Double Coat — only have nine for the same price.

Price hikes are expected to get worse as the war in Ukraine goes on, affecting supply chains around the world.

Mr Lucas has advised customers to accept living costs are set to increase "across the board".

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Traditional price markups are also beginning to occur due to the war, with major Australian food supplier SPC having just announced its staple products — from baked beans to canned fruit and dried spaghetti — will go up by 10 to 20 per cent.

The price change has been attributed to the increased production and distribution costs due to things like the rising price of oil.

When shopping for groceries, customers are advised to compare the 'price per 100 grams' labels for clearer cost comparisons.

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