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Crossbench MPs and senators have called for an urgent parliamentary inquiry into AUKUS after the US announced the Pentagon will launch a review into the pact.

Allegra Spender, Helen Haines, Andrew Wilkie, Nicolette Boele, Sophie Scamps, Zali Steggall, Monique Ryan, Kate Chaney and Senators Jacqui Lambie and David Pocock have written to the deputy prime minister calling for further scrutiny of the deal.

The MPs and senators say there has been limited opportunity for parliamentary oversight of the pact and believe now is the appropriate time to review AUKUS.

"People across our communities are increasingly concerned about the AUKUS agreement," the joint letter reads. 

"These concerns relate to the overall cost of AUKUS, the feasibility of delivering the desired capabilities in the required timelines, a perceived lack of transparency and accountability, and the apparent absence of contingency plans should any AUKUS partner withdraw from or be unable to deliver aspects of the agreement including the provision of the Virginia Class Submarines," it reads.

Prime Minister Anthony Albanese has touched down in Nadi, Fiji to pomp and ceremony.

He was welcomed at the airport by Fiji's Deputy Prime Minister Biman Prasad, Australia's High Commissioner to Fiji Peter Roberts and other officials.

The prime minister is stopping in the Pacific island nation ahead of his visit to the G7 summit in Canada.

Israel's ambassador to Australia Amir Maimon says Israel's military action against Iran is designed to "dismantle the Iranian regime's advancing nuclear program".

Maimon says Israel is exercising its sovereign right to defend its people and safeguard the security of future generations. 

He says the strikes targeted critical elements of Iran's nuclear enrichment and weaponisation infrastructure. 

A UN watchdog report found Iran was disregarding commitments designed to prevent it from building a nuclear bomb.

The ambassador says his country's strikes on Iran are not just a necessity, but a "strategic and moral imperative for Israel". 

"A nuclear-armed Iran poses an existential threat to the State of Israel and a grave danger to regional and global stability," Maimon says.

"The regime's expansionist ideology, its support for terrorist proxies across the Middle East and its growing arsenal of long-range missiles demand urgent action," he says.

Keen to know more about Israel's strikes on Iran? Take a look at the ABC's live blog below:

We'd be more productive if people with skills (whether immigrants or those moving between states) faced fewer complexities in getting their credentials recognised. But critics would point to the risk of underqualified people getting through.

Regulations are both barriers and protections. Whether you see particular regulations as negative or positive will depend where you are coming from. Less regulation can enhance productivity — but in certain cases, the trade-off can be less protection and/or more risk. We have, for good or ill, become a more risk-averse community.

Read the full analysis from Michelle Grattan on the federal government's plans for productivity.

Shadow Foreign Affairs Minister Michaelia Cash says the Coalition is "concerned" about the escalation in tensions between Israel and Iran. 

Cash has called on Iran to drop its sponsorship of terrorist groups Hamas and Hezbollah, and guarantee it won't acquire nuclear weapons. 

The defence minister says Australia is open to sharing a secretive review into Australia's new submarine agency with its partners.

Last year, the ABC revealed Defence Minister Richard Marles had asked veteran bureaucrat Dennis Richardson to examine the effectiveness of the Australian Submarine Agency (ASA), and its efforts to acquire nuclear-powered boats for the navy. 

The government has confirmed Richardson's classified advice has now been handed to the minister to inform the future direction for the ASA.

In a press conference today, Marles indicated he was open to sharing the secret findings of the Richardson review with the US and UK. 

"We're very open with our partners about how all of the steps we're taking in respect of AUKUS are progressing and that very much includes the establishment of the Australian Submarine Agency and it's performance," Marles says.

Deputy Prime Minister Richard Marles says he's confident the US can boost production of Virginia-class nuclear-powered submarines by the early 2030s.

Former prime minister Malcolm Turnbull told 7.30 last night that Marles overestimated the the US's ability to produce at least two submarines per year in an earlier interview with the program. 

On Friday, Marles slapped down that suggestion and said Australia was providing funding and Australian tradespeople to help get those submarines built. 

Asked if he's worried the US will pull out of AUKUS, Marles says he's confident it will go ahead and that the review being undertaken by the Pentagon is completely normal.

"I'm confident that AUKUS will proceed as we have agreed under a treaty with the United Kingdom and the United States with the Trump administration. The review which is being undertaken now is a completely natural step for an incoming government to take," Marles says.

"New governments are going to want to have a look at it to see how they can best operate it. that's what's going on here. We welcome this review," he says.

The missive landed while most Australians were still asleep: "Pentagon launches review of AUKUS nuclear submarine deal," read the headline in the UK's Financial Times.

Signal chats from Canberra to Washington started lighting up as everyone from defence officials down tried to understand what it might mean for the $368 billion deal, aimed at countering China's rise in the region.

They only needed to log in to Twitter.

Pentagon official Elbridge Colby — who will lead the review — fired across the bow, posting a quote from US Defense Secretary Pete Hegseth: "Hegseth on Tuesday reiterated Trump's call for allies in the Indo-Pacific to increase their defence burden-sharing."

Posted, as they say, without comment but it came only minutes before the story broke in the Financial Times.

National Affairs Correspondent Jane Norman has compiled this analysis on Prime Minister Anthony Albanese's visit to the G7 summit.

Foreign affairs reporter Stephen Dziedzic has just spoken to the ABC News channel to break down Penny Wong's comments about Israel's strikes on Iran. 

Dziedzic says the foreign minister didn't want to be drawn on the source of the strikes, but says she urged all parties to stabilise tensions.

He says the strikes come just days before the US was set to sit down with Iran for a sixth round of talks on its nuclear program on Sunday.

"What we could see over the coming days is something that everyone will be watching very closely. But the fear has been that we may see not only retaliations by missile strikes form Iran, but also potentially drone strikes drawing further retaliation from Israel in response," he says.