Today's headlines include:

The US-Iran war has further escalated after an American submarine sank an Iranian warship off Sri Lanka, killing at least 80 people.
Canada's prime minister Mark Carney has delivered an address to Australia’s Federal Parliament and urged the two countries, which he described as “strategic cousins” to boost their cooperation on a number of fronts.
A by-election has officially been announced for the regional NSW seat of Farrer on 9 May.
And today’s good news: The 2026 Milano Cortina Winter Paralympics officially begin tomorrow morning with the Opening Ceremony beginning at 6am (AEDT).

Reporting with AAP.

Hosts: Billi FitzSimons and Zara Seidler
Producer: Rosa Bowden

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Headlines: American submarine sinks Iranian warship