Navy

Yemen's Iran-aligned Houthis say they have fired missiles at two more vessels in the Red Sea, causing damage to the ships.

The US military says the sailors were taking part in a January raid on an unflagged ship carrying illicit Iranian made-weapons.

Australia will not send a warship to the Red Sea as part of international efforts to safeguard cargo from attacks by Iranian-backed Houthi rebels.

AUKUS documents reveal that WA will have a low-level radioactive waste management system in place as well as receiving an influx of more than 700 Americans to work on the project.

The US and British militaries say they have shot down 15 attack drones targeting commercial ships in the Red Sea. Australian peak shipping bodies warn there could be major implications. 

HMAS Matafele disappeared without a trace during a treacherous sea voyage in 1944, but a stroke of fortune meant a 19-year-old crewman missed the boat.

The commander of Australia's naval fleet says the service is well prepared to deploy a warship to the Middle East if the Albanese government agrees to join an international mission to protect merchant vessels in the Red Sea.

Australia's acquisition of nuclear-powered submarines hits another major milestone, as supporters of the deal seek to ease concerns that it could be torn up by a future US president.

The US military takes the extraordinary step of grounding hundreds of aircraft after a preliminary investigation of last week's fatal crash indicated that something wrong with the aircraft — and not a mistake by the crew — led to the accident.

The navy removed a requirement for "value for money" from the tender process for its $45 billion future frigate program, with previously secret documents also revealing the Department of Defence selected a controversial British warship design despite being aware of potential risks.

The Philippines Coast Guard says the maritime vessels were "scattered" within Whitsun Reef, about 320 kilometres west of Palawan Island and more than 1,000 kilometres from China's Hainan Island.

Australia will join the US and UK in testing a new way of tracking Chinese submarines using artificial intelligence. The announcement comes a fortnight after Australian naval divers were injured in an incident with a Chinese warship.

The foreign minister and opposition leader press a top Chinese official over the "unsafe and unprofessional" conduct of a People's Liberation Army warship that confronted an Australian frigate earlier this month.

The warning comes in the wake of a confrontation between Australian frigate HMAS Toowoomba and a Chinese warship, which left two Australian divers with minor injuries.

HMAS Toowoomba, whose divers sustained minor injuries from a Chinese sonar pulse, has now begun joint naval patrols in the South China Sea where regional tensions with Beijing are growing.

Just days after a Chinese warship caused minor injuries to Australian defence personnel, the US Navy is warning Beijing to respect international law.

Taiwan's defence ministry said an Australian ship, understood to be the HMAS Toowoomba, has sailed through the strategic waterway, after its personnel were injured by a Chinese sonar pulse. 

China's government has denied its navy behaved unprofessionally when it injured Australian divers after firing a sonar pulse between China and Japan.

China's denial that it sent sonar pulses that left Australian naval divers with minor injuries has been labelled propaganda by the opposition. 

Beijing has denied Australia's account of events after the sonar pulse injured navy divers, but the US among others have thrown their support behind Australia's version of events.

Prime Minister Anthony Albanese will not say what he raised with Chinese leader Xi Jinping at their meeting last week, days after the Chinese navy used "dangerous" sonar pulses that harmed Australian defence personnel

Australian naval personnel have sustained minor injuries to their ears after being subjected to sonar pulses from a Chinese warship. Here's what you need to know about the technology.

Several Australian navy divers have been injured after a confrontation with a Chinese warship off Japan's coast.

Naval divers working to clear fishing nets from the HMAS Toowoomba's propellers were forced to exit the water when a Chinese warship began operating its hull-mounted sonar, in an incident labelled "unsafe and unprofessional".

Alcohol is heavily restricted when Navy personnel are on active duty, and the ADF has opened an inquiry into the affair.