A man fatally shot eight children, seven of them his own, across three Shreveport, Louisiana, homes early on Sunday (Monday morning AEDT), according to police.

It marks the nation's deadliest mass shooting since January 2024.

The children killed were three boys and five girls ranging in age from three to 11, the Caddo Parish Coroner's office told CNN.

LIVE UPDATES: Treasurer admits Australia 'hostage' to world politics amid recession fears

They included seven siblings and a cousin, the coroner's office said. Police said earlier the ages ranged from one to 14.

The coroner identified the victims as Jayla Elkins, three; Shayla Elkins, five; Kayla Pugh, six; Layla Pugh, seven; Markaydon Pugh, 10; Sariahh Snow, 11; Khedarrion Snow, six; and Braylon Snow, five.

Shreveport Police Cpl. Chris Bordelon identified the gunman as Shamar Elkins, and told CNN affiliate KSLA the shootings were "domestic in nature".

Elkins was 31, according to previous police reports.

A 13-year-old boy was injured after fleeing from a home and jumping from the roof, Bordelon told KSLA.

WATCH: Schoolboy becomes trapped in bus doors and dragged down road

He sustained a "few broken bones" but is expected to recover, he said.

Some children tried to escape out the back door during the shooting, said state Rep. Tammy Phelps during a news conference Sunday afternoon with other city officials.

Two adult women were also shot in Sunday's attack, Bordelon told KSLA.

Elkins' wife, the mother of his children, was shot first and had "very serious injuries".

Then Elkins went to a separate residence where he shot the eight children and another woman.

The other woman, who was the mother of the eighth child killed, has "life threatening injuries," he added.

Elkins was arrested in 2019 on a firearms case, according to a police report, after a man in a car pulled a gun on him.

SPORT: Dragons sack Flanagan after 11-game losing streak

Elkins fired five rounds at the vehicle in retaliation while next to a school.

He also served in the Louisiana Army National Guard for seven years until August 2020, according to the US Army. He was not deployed.

The gunman was fatally shot by officers after carjacking a vehicle and leading police on a chase into the next parish, Bordelon said.

The Louisiana State Police are investigating the officer-involved shooting.

"It rattles the entire city," Shreveport Mayor Tom Arceneaux said. "It affects us all."

There have been at least 114 mass shootings in the United States so far this year, according to the Gun Violence Archive, which like CNN defines a mass shooting as one in which four or more people are shot, not including the shooter.

Shreveport, which is about 250 miles northwest of Baton Rouge, has about 180,000 residents.

More than 30 per cent of the murders in the city are domestic in nature, said city councilman Grayson Boucher.

A 'horrific scene'

Police responded to reports of shots fired in the Cedar Grove community of Shreveport just after 6am CT and found victims in two homes along West 79th Street and a third home on Harrison Street, Bordelon said.

"This is a very large scene with multiple deceased children present," Bordelon said.

READ MORE: Unlicenced driver charged after 'hitting and killing man outside comic con'

Arceneaux said the scene was "horrific."

The shootings mark the eighth through 15th homicides for Shreveport and Caddo Parish this year, according to the coroner's office.

A neighbour's security camera captured video showing the gunman fleeing toward a tire shop, according to The Associated Press.

"That's' pretty much all I saw, was him running out of the house," Liza Demming, who lives two doors down from one of the shooting locations, said.

Demming said she didn't know the shooter's name but that she had seen him with the children a few days before.

She said later went outside and saw the covered body of a child on the home's roof.

READ MORE: Trump says US negotiators will be in Pakistan on Monday for talks with Iran

Tragedy reaches 'far beyond'

City councilwoman Tabatha H. Taylor broke down in tears when speaking of the events late on Sunday.

"I'm going to ask the community, along with prayer, with every mental health consultant, counsellor, that is out here: This family and this community needs you," she said.

"I need you. Because how do we get through this?"

Arceneaux called it a "tragic situation" and said it was maybe the "worst" in Shreveport history.

"My heart is just taken aback. I just cannot begin to imagine how such an event can occur," Shreveport Police Chief Wayne Smith said.

"I just don't know what to say."

US House Speaker Mike Johnson, who represents the Shreveport area in Congress, called the killings "heartbreaking."

"We're holding the victims, their families and loved ones, and our Shreveport community close in our thoughts and prayers during this incredibly difficult time," Johnson said.

Superintendent Keith Burton of Shreveport's Caddo Parish Public Schools said the community "must take care of our children, support our families, and stand beside our educators and first responders who are carrying the weight of this moment."

Arceneaux said the tragedy reaches "far beyond the scene itself".

"These are the kinds of moments that leave a lasting imprint — on our hearts, on our minds, and on our sense of safety," the mayor said.

Support is available from the National Sexual Assault, Domestic and Family Violence Counselling Service at 1800RESPECT (1800 737 732)

NEVER MISS A STORY: Get your breaking news and exclusive stories first by following us across all platforms.

• Download the 9NEWS App here via Apple and Google Play
• Make 9News your preferred source on Google by ticking this box here
• Sign up to our breaking newsletter here

Search teams spent hours clearing debris at the rural property in Karori.

The outage hit homes just north of Whitford from 5.43pm this evening.

Carrie Kake helped create Open Arms in 2018, a day shelter for Whangārei rough sleepers.

Many Wellington residents fled flooded homes and slips with little warning.

Pakūranga Bakery now sources horse meat from New Zealand’s only approved processor.

Coca-Cola says the new packaging makes each bottle easier to recycle.

Critics fear repeals of Treaty clauses could trigger fresh court battles.

Any tax reform that slugs property investors could drive up rental prices, the peak body for brokers claims.

Treasurer Jim Chalmers has hinted the government could be preparing to change the capital gains tax (CGT) discount for property investors or limiting the number of houses that can be negatively geared in the upcoming budget.

Critics of the Howard-era policies argue that, when combined, the two policies created a rush in property investor activity, drove up prices beyond the reach of the average first-home buyer and continue to advantage the wealthy.

MONEY: Millions of Australian workers to get instant $1000 tax deduction

Chalmers has had tackling intergenerational inequality in his sights since his maiden speech to parliament in 2013, and any changes to these policies would be aimed at precisely that.

But the Finance Brokers Association of Australia (FBAA) claims forcing investors out of the market now will have the opposite than desired effect, particularly on rental prices.

"In many parts of Australia, there are 10 to 20 people or more looking at one rental property such is the lack of availability now, so why would we reduce that supply even more," interim CEO Peter White said.

"The theory that this will drive down the cost of housing to the extent where someone who can't currently afford to service a mortgage and enter the property market, will suddenly be able to, is overly simplistic and ignores the many other factors in loan approval."

Proponents of reform say removing perks for investors will dampen demand, and give first home-buyers a chance.

Matt Grudnoff, Senior Economist at The Australia Institute, believes tax concessions for property investors have skewed the market.

"The CGT discount is the biggest single incentive for investors," Grudnoff said.

"By scrapping it, the federal government will advantage first home buyers, helping more Australians into a home of their own."

Currently, the capital gains discount policy means that if you buy an asset such as a house, hold it for at least 12 months and then sell it, you only pay tax on half the profit (capital gain).

Before 1999, the actual capital gain was indexed to inflation.

Recent polling by the Australia Institute found 50 per cent of respondents agreed the government "should reduce tax concessions for property investors, such as the capital gains tax discount and negative gearing".

In March, two Labor senators endorsed a parliamentary inquiry's report which found the discount's design benefits investors over first-home buyers, and can drive intergenerational inequality.

The Greens want to see negative gearing phased out and property-related capital gains tax discounts and exemptions abolished.

The Coalition is firmly against any changes to CGT.

NEVER MISS A STORY: Get your breaking news and exclusive stories first by following us across all platforms.

• Download the 9NEWS App here via Apple and Google Play
• Make 9News your preferred source on Google by ticking this box here
• Sign up to our breaking newsletter here

Dairy co-operative Norco has announced it will raise its farmgate milk price by five cents per litre in response to war-related rises in fuel, fertiliser and freight costs.

Norco says the price rise from next month will add about 30 cents per week to the average family grocery shop and is crucial to offset sharp increases in costs for their farmers across northern New South Wales and south-east Queensland.

The farmgate milk price, which is the amount dairy producers pay farmers for milk, would lift to 97 cents per litre on average.

BUDGET: Millions of Australians offered $1000 instant tax deduction under proposed law

Norco full cream milk currently retails at supermarkets for between $2.20 to $2.90 per litre.

"These cost increases are unprecedented," Norco Chief Executive Michael Hampson said.

"Our farmers are paying double for diesel, triple for fertiliser and 40 per cent more for freight.

"These pressures are simply unsustainable without meaningful support across the supply chain – and this price increase is a small but important step in helping to offset those pressures."

Hampson said the rise was not about increasing profits for farmers.

"Right now, farmers critically need these increases to remain viable and protect their livelihoods – that's the sheer reality of the situation," he said.

"This is not about increasing margins – it's about ensuring the sustainability of our farmers and the future of the Australian dairy industry."

The price rise comes as the wider dairy sector asks Coles and Woolworths to raise the price of their generic own-brand milk to help farmers cover costs.

eastAUSmilk president Tim Bale told nine.com.au earlier this month the cost of urea, a common nitrogen fertiliser, had more than doubled.

"Farmers will cut back production or exit the industry over the coming months if something isn't done immediately," Bale said.

Hampson said further price rises may be necessary as cost pressures continue to build.

Winter planting of feed crops is exposed to the same global pressures and any shortage could lead to increased prices for dairy farmers toward the end of the year, he said.

NEVER MISS A STORY: Get your breaking news and exclusive stories first by following us across all platforms.

• Download the 9NEWS App here via Apple and Google Play
• Make 9News your preferred source on Google by ticking this box here
• Sign up to our breaking newsletter here