It comes two days after six people were stabbed to death in a Bondi mall.

Lee Hsien Loong promises closer co-operation with New Zealand.

The six people who died after the mall stabbing attacks in Sydney have been named.

A gang of hammer-wielding teenagers has carried out another crime spree across Melbourne.

The four boys smashed their way into a supermarket and a number of service stations and stole $40,000 worth of cigarettes.

The rampage began at an IGA in Macleod in Melbourne's north-east where the group forced their way behind the counter, towering over two female staff.

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One hooded male pulled out a hammer and started swinging it, in an attempt to unlock a cabinet of cigarettes.

He gave up, and after his friend tried and failed, they left with thousands of dollars in a till.

The boys then robbed three service stations in Doncaster East, Kilsyth and Murrumbeena.

TIMELINE: How the Bondi Junction Westfield stabbing attack unfolded

At the United petrol station in Doncaster the gang managed to steal $20,000 worth of cigarettes and $5000 from the till.

They took 150 packets at an Astron service station in Murrumbeena too.

Victoria Police are investigating whether their getaway car was stolen during an aggravated burglary in Warranwood on Friday.

READ MORE: Police investigate whether Sydney stabbing spree killer targeted women

"We now have these repeat offenders basically mocking Victoria's justice system," Opposition Leader John Pesutto said today.

"They're laughing at Victoria's justice system."

The young offenders and the stolen Audi have not yet been found.

Instagram star Molly the magpie has been reunited with his staffy friends after he was voluntarily surrendered to authorities more than 45 days ago.

The Department of Environment, Science and Innovation (DESI) approved a specialised licence and reunited the bird with Gold Coast couple Juliette Wells and Reece Mortensen after they agreed to several conditions.

The bird, which was made famous by its friendship with a staffy named Peggy and later the canine's daughter Ruby, has more than 835,000 followers on the social media platform.

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"We have the best news, Molly is home!!!" the Peggy and Molly Facebook page posted.

"We are overwhelmed with emotion right now.

"I have been visualising and looking forward to this day for what feels like a lifetime.

"It was a very exciting reunion at the (DESI) this morning for us with a little cry of happiness from Molly.

"When we arrived home the Peggy and Ruby wiggly bottoms were in full force and a few excited noises from Molly.

"We are so grateful to you, our supporters, Queensland Premier Steven Miles and the DESI for allowing us to get our licence and to be reunited with Molly again.

"We look forward to life settling back down to normal very soon."

Queensland Premier Steven Miles said in a statement he was advised Molly's carers picked him up today.

"The department worked with the couple to issue them with a specialised licence to enable Molly's return," Miles said.

"Molly has received excellent care during this time, and I'm told he's been in great spirits throughout.

"I know how strongly people have felt about this – thank you again to everyone who has been in touch about it."

DESI said in a statement this morning the decision to return Molly has been made in accordance with the Nature Conservation Act 1992 "following extensive legal advice".

"Independent expert veterinary advice has shown that Molly, who was surrendered to the department on March 1, is highly habituated and may have developmental issues, meaning it can never be rehabilitated or returned to the wild," a spokesperson said.

The spokesperson said the family has agreed to receive no ongoing commercial gain from the bird or its image, undertake wildlife carer training and have ongoing engagement with DESI to ensure the bird is receiving adequate care and enrichment.

"DESI has also required the family undertake an advocacy and public education role be performed to encourage people to appropriately care for native wildlife and acknowledging the specialist skills required to care for and rehabilitate wildlife," DESI said.

Nadine Hams thought she met the love of her life when she began chatting with a charming British national who had moved to Australia when he was younger.

But not even six months into the relationship, things began to turn, with Hams telling 9News her abuser had quickly turned "evil".

"His fuse could go from normal to a psychopath within a split second," she said.

TIMELINE: How the Bondi Junction Westfield stabbing attack unfolded

The Gipplsand mother had met Terry Phillips online, and he didn't waste any time before he began love-bombing her.

"He was extremely affectionate and basically too good to be true," she said.

"He was good at covering things up, making excuses and compulsive lying.

"The first sign that he was violent was that he liked to strangle (me). He would sit on me."

The abuse continued to get worse, with one incident occurring while she was driving on the freeway, eight months pregnant. 

"We were out to dinner with my three kids and we were driving home. He just snapped randomly and he grabbed a stick in the car and started whacking me while I was driving," Hams said.

"I had split my head open and had blood pouring down me. He wouldn't let me slow down.

"(Previously) he broke my wrist in two spots after I tried to leave the room (during an argument). He pushed me down the hall and broke my wrist.

"(He) is a disgusting human being."

A week after giving birth to their son, Hams was breastfeeding on the couch when she was viciously set upon.

"He came over and tried to kick me. I still had stitches. The baby's head was there but he missed. He could have killed the baby, he punched me and broke my cheekbone."

For months, the 43-year-old kept her injuries a secret, concealing her black eyes and scars with makeup.

She told 9News that the abuse was not only physical, with her abuser monitoring her phone and social media accounts.

But she secretly confided in a friend, sending them photos of her injuries.

"I needed to figure out a way to get out safely and gather evidence."

The mother of four eventually went to police, where a team of dedicated officers dug more deeply into the case, and uncovered a history of family violence.

"The Baw Baw family violence (team) were amazing and they had always made time for me," Hams said.

Family violence has been escalating over the past decade, with Victoria Police responding to more than 94,000 incidents in the last year, a jump of two per cent from the previous year.

More than a third of those incidents were witnessed by children.

The 43-year-old has shared her story to encourage others experiencing family violence to reach out and notify someone.

"We are stronger than what we think we are. If you believe in what's right, you can get through it," she said.

"I kept focusing on the truth, and I believe in karma."

Phillips pleaded guilty to abusing a number of victims including children. He's now in prison.

Australian homeowners could save thousands of their home loans each year by asking one simple question, experts say.

New research from mortgage software company Sherlok has revealed banks will cut, on average, close to half a per cent from mortgage rates if asked.

According to the research, someone with a $600,000 loan could save $2760 annaully.

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"You can save $2000 or $3000 a year," Sherlok founder Adam Grocke said.

"People should be doing this every 11 months. So 11 months since their loan settled or 11 months from the last time they negotiated with their lender."

It comes after the latest Financial Stability Report released by the RBA found that one in every 20 mortgage holders are spending more on repayments and other living expenses than what they earn.

READ MORE: $18 million inquest into Bondi stabbings announced

AMP Capital Chief Economist Shane Oliver said mortgage holders could see "huge savings".

"Obviously you have seen a massive increase, more than $10,000 from the low point but nevertheless that saving will be welcomed," he said.

Economists have told 9News the Reserve Bank rate cuts expected this year could be delayed as inflation remains a concern.

"The debate at present isn't so much around whether we will get rate cuts but when they will happen," Oliver said.

"The concern is those rate cuts will be delayed to later this year or early next year."

The information provided on this website is general in nature only and does not constitute personal financial advice. The information has been prepared without taking into account your personal objectives, financial situation or needs. Before acting on any information on this website you should consider the appropriateness of the information having regard to your objectives, financial situation and needs.

The bosses of Australia's biggest supermarkets are bound for Canberra, set to appear before a Senate committee. 

Unions, farmers and the consumer watchdog spoke about the squeeze being felt across the country as whistleblower Abdel Badura blamed the grocery giants. 

"Blowing the whistle on the supermarket duopoly is the biggest risk I have taken both personally and professionally," Badura said.

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Badura spoke out as the Senate examines supermarket pricing, calling on his experience working for suppliers dealing with the big grocers, which will have their say tomorrow.

"During this time I have witnessed the tactics and practices Australia's supermarket duopoly Coles and Woolworths deploy to price gouge suppliers and ultimately customers," Badura said.

Greens Senator Nick McKim said these two days "are going to be critical for this inquiry".

"Ultimately the CEOs of Coles and Woolworths are going to need to explain," McKim said. 

READ MORE: Insta-famous bird Molly the magpie returned home to carers

A review of the grocery code of conduct is under way.

Coles and Woolworths support making the voluntary code mandatory.

The interim review has already suggested billions of dollars in fines if sustained price gouging is found.

"Where a matter is brought to us that incorporates significant harm and systemic harm occurring, then we take action," Australian Competition and Consumer Commission deputy chair Nick Keogh said.

This is one of six inquiries currently looking at supermarkets.

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The majority of senators have called for so-called divestiture powers that could force the big supermarkets to sell if the businesses are found to be abusing their market share.

"The biggest recent divestiture was AT&T in the US and that's had a massive positive effect on jobs," former ACCC boss Allan Fels said.

Prime Minister Anthony Albanese is against the move as he is worried about the impact on competition.

Casey Smith stole $50,000 after getting a new SIM card for the victim’s phone number.

The final Newshub 6pm bulletin is scheduled for Friday, July 5.