Deep-sea robots will continue to search the sea floor for clues about what happened to the Titan submersible that imploded deep in the North Atlantic, killing all five people on board.

The Titan, owned by undersea exploration company OceanGate Expeditions, had been chronicling the Titanic shipwreck's decay and the underwater ecosystem around the sunken ocean liner in yearly voyages since 2021.

Many questions about what occurred underwater remain.

Here's what we do know so far:

WHEN AND WHERE DID THE TITAN GO MISSING?

* The craft submerged Sunday morning and its support vessel lost contact with it about an hour and 45 minutes later

* The vessel was reported overdue about 700km south of St John's, Newfoundland

* The Titan was launched from a former Canadian coast guard icebreaker hired by OceanGate that has ferried dozens of people and the submersible craft to the North Atlantic wreck site, where the Titan has made multiple dives

WHAT HAPPENED ABOARD THE TITAN?

* The vessel suffered a catastrophic implosion, killing all five aboard, sometime this week after it submerged Sunday morning

* It's not clear exactly when or where the implosion occurred

* A senior military official said on Thursday a US Navy acoustic system detected an "anomaly" on Sunday that was likely the Titan's fatal implosion

* Coast guard announced debris from the submersible had been found and rescue efforts had ended on Thursday

* "The debris is consistent with the catastrophic loss of the pressure chamber," coast guard Rear Admiral John Mauger said

* A deep-sea robot discovered the debris, near the Titanic shipwreck, that authorities said came from the submersible

* The senior military official said the navy went back and analysed its acoustic data after the Titan was reported missing and that anomaly was "consistent with an implosion or explosion in the general vicinity of where the Titan submersible was operating when communications were lost"

* The official spoke on condition of anonymity to discuss a sensitive acoustic detection system

* The navy passed on the information to the coast guard, which continued its search because the navy did not consider the data definitive

WHAT'S NEXT?

* The coast guard will continue searching near the Titanic for more clues about what happened to the Titan

* Efforts to recover the submersible and the remains of the five men who were on board also continue

WHO WAS KILLED?

* The victims are OceanGate chief executive and Titan pilot Stockton Rush; two members of a prominent Pakistani family, Shahzada Dawood and his son Suleman Dawood; British adventurer Hamish Harding; and Titanic expert Paul-Henri Nargeolet

* "These men were true explorers who shared a distinct spirit of adventure, and a deep passion for exploring and protecting the world's oceans," OceanGate said in a statement

© AP 2023

The Liberals say they expect to see a "dirty campaign" from Labor as the major parties battle in a by-election for the federal seat of Fadden.

The Australian Electoral Commission will on Friday conduct the ballot draw for the July 15 by-election, triggered by the resignation of controversial former minister Stuart Robert.

It is expected there could be as many as eight candidates on the ballot paper.

Visiting the Gold Coast seat on Friday, Opposition Leader Peter Dutton told reporters the rising cost of living would be a key issue in the by-election.

But Mr Dutton expected a tough fight, despite the seat being held by the LNP with a margin of 10.6 per cent.

"There's a big fight on and Labor will run a dirty campaign," Mr Dutton said.

"But this by-election is about electing a champion for your local community, somebody who can work hard.

"And it's also about making sure that you deliver a message to the Labor government that they're not doing well enough on cost of living issues, on crime, on congestion."

The LNP is running Gold Coast councillor Cameron Caldwell, while Labor has re-endorsed its 2022 election candidate, nurse educator Letitia Del Fabbro.

The by-election comes as independent federal MPs call for ministers to be forced by law to publish the meetings they have with lobbyists, politicians and interest groups.

Kooyong MP Monique Ryan and Curtin MP Kate Chaney said media reports Mr Robert met with consulting firm Accenture to discuss an $111 million federal project when he was a cabinet minister showed the need for ministerial diaries to be published.

"The public should know who ministers are meeting and why, and they should know this as soon as is practicable," they said.

"We should have known about this important meeting between former minister Robert and Accenture in 2021, not after the minister had left office and resigned."

Labor in opposition argued for the publishing of ministerial diaries.

The government also raised questions in parliament on Thursday about whether Mr Robert was a "shadow director" of lobbying firm Synergy 360, which cabinet minister Bill Shorten said "sign(ed) up corporate clients with the promise of helping them navigate parliament and the bureaucracy and meet key decision-makers, including senior coalition ministers".

Mr Robert has denied helping Synergy 360 assist its clients to secure government contracts.

© AAP 2023

Voters in the Queensland seat of Fadden are to find out the full list of candidates for the upcoming by-election.

The Australian Electoral Commission will on Friday conduct the ballot draw for the July 15 by-election, triggered by the resignation of controversial former minister Stuart Robert.

It is expected there could be as many as eight candidates on the ballot paper.

The Liberal National Party hopes its candidate, Gold Coast councillor Cameron Caldwell, can retain the seat Mr Robert held in 2022 with a 10.6 per cent margin.

Labor is running its 2022 election candidate, nurse educator Letitia Del Fabbro.

Following a seat-wide mailout by the LNP, there have so far been 10,425 postal vote applications.

At the last election there were 24,000 postal vote applications, with 15,000 votes returned.

The by-election comes as independent federal MPs called for ministers to be forced by law to publish the meetings they have with lobbyists, politicians and interest groups.

Kooyong MP Monique Ryan and Curtin MP Kate Chaney said media reports Mr Robert met with consulting firm Accenture to discuss an $111 million federal project when he was a cabinet minister showed the need for ministerial diaries to be published.

"The public should know who ministers are meeting and why, and they should know this as soon as is practicable," they said.

"We should have known about this important meeting between former minister Robert and Accenture in 2021, not after the minister had left office and resigned."

Labor in opposition argued for the publishing of ministerial diaries.

The government also raised questions in parliament on Thursday about whether Mr Robert was a "shadow director" of lobbying firm Synergy 360, which cabinet minister Bill Shorten said "sign(ed) up corporate clients with the promise of helping them navigate parliament and the bureaucracy and meet key decision-makers, including senior coalition ministers".

Mr Robert has denied helping Synergy 360 assist its clients to secure government contracts.

© AAP 2023

Senior Queensland police have viewed body cam footage of an incident in which an officer repeatedly punched and then tasered a male driver in Brisbane's north.

The man was arrested and taken to the Royal Brisbane and Women's hospital for treatment for minor cuts after the incident in Strathpine on Thursday.

Police were responding to a three-car crash before 2pm when the agitated man allegedly confronted an officer from inside a car.

Investigators say the man was under the influence at the time and drinking from a wine bottle, which the officer tried to confiscate.

"After the officer attempted to take the bottle away several times, it was allegedly thrown towards him," Queensland Police said in a statement.

Bystander footage shows an officer repeatedly striking the man before deploying his Taser while multiple firefighters look on.

"He needs to stop ... you can't do that," a person can be heard saying in the video.

Police said the officer used physical force to contain the man, who was trying to leave the car by kicking the door into him.

Another officer was allegedly spat on by the man.

The Taser was deployed after several verbal warnings, police said, and the man was taken into custody.

A police investigation into the incident is ongoing and anyone with information is being urged to contact Crime Stoppers.

© AAP 2023