As Muslims mark the start of the holy month of Ramadan, Australia's largest mosque has received yet another security threat, the third in a month.

As police confirm a threatening letter's been sent to Lakemba Mosque in Sydney's west, the New South Wales Premier's moving to reassure the Muslim community their security is a top priority.

This comes in the wake of inflammatory comments made by One Nation leader Pauline Hanson about Muslim people, that are being widely condemned.

Muslims are also raising concerns about a recent rise in Islamophobia.

Meta boss Mark Zuckerberg has been facing a grilling in a landmark trial that questions whether its social media platforms Facebook and Instagram deliberately addict and harm children.

The billionaire's told the court while Meta previously had goals related to the amount of time users spent on the apps, it's since ‌changed its approach.

Mark Zuckerberg also repeatedly said the tech giant doesn't allow kids under 13 on its platforms, despite being confronted with evidence suggesting they were a key demographic.

The Albanese Government will be closely watching the release of the latest unemployment figures today given they're a key indication of whether inflation's improving or getting worse.

The government's facing renewed pressure over its handling of the economy and it's been copping criticism that it's spending too much and pushing up inflation.

Opposition Leader Angus Taylor hopes to convince voters that the government's failed to manage the economy, especially after a recent rise in interest rates.

The Greens have joined legal experts in urging the federal government to help bring home Australians with links to ISIS who are stranded in Syria.

A group of women and children are currently trying to leave Syria but are having trouble getting out.

A legal order has been issued to bar one person from returning to Australia for up to two years, and it gives authorities time to figure out what to do.

But on the conservative side of politics, Coalition MPs want the Albanese Government to consider further legislative measures to stop the women and children coming home, due to national security concerns over their connection to the brutal Islamic State caliphate.

The founder of Facebook and the boss of Instagram-owner Meta, Mark Zuckerberg, has defended his leadership, while appearing in a landmark legal case over whether the platforms deliberately addicted and harmed children.

Zuckerberg has told the court while Meta previously had goals related to the amount of time users spent on the apps, it's since ‌changed its approach.

Meta's lawyers argue a 20-year-old customer at the centre of the case was hurt by other things in her life and not by her use of Instagram.

And eight back-country skiers have been found dead and one's missing after an avalanche near Lake Tahoe in California.

Authorities have told the families the mission's moved from rescue to recovery and crews have faced treacherous conditions.

It's the deadliest avalanche in the US in more than four decades.

The New South Wales Premier Chris Minns is assuring the Muslim community police will have a major role in ensuring their safety and security during the holy month of Ramadan.

It comes as police investigate a third threatening letter send to a mosque in Sydney's south-west in the past month.

That follows reports of a spike in Islamophobic incidents following the Bondi terror attack.

The far-right populist party One Nation is also surging in the polls and its leader Pauline Hanson has copped backlash this week for suggesting there are no good Muslims.

Facebook founder Mark Zuckerberg is appearing before a court in the United States as part of a case claiming the social media giant put profits before the mental wellbeing of its customers.

He's appearing before a jury to try to convince them his company was not responsible for the mental health problems of a 20-year-old customer.  

She alleges the Facebook designed its social media platforms to make them addictive and therefore negatively impacted her.

Meta's chosen to contest the case rather than settle it because there are many other similar cases waiting for the outcome.

Danielle Scott has taken silver in the women's aerials finals at the Winter Olympics, continuing Australia's record medal winning run at these games.

It's the first Olympic medal for the 35-year-old, who is competing at the games for the fourth time.

The mental health system in New South Wales is under review after two patients escaped the same hospital in Sydney and allegedly killed three people.

In one incident, authorities say a 31-year-old man escaped Cumberland Hospital and days later allegedly crashed a car in Camden killing two women.

In a separate incident, a 25-year-old man who escaped the same hospital has been accused of stabbing three people and killing one of them.

Mental health experts have welcomed the review.

The scandal about building corruption in Melbourne continues to ramp up.

Multiple Victorian government ministers want the premier Jacinta Allan to call a royal commission into allegations of rampant criminality on major infrastructure projects, over allegations it's cost taxpayers up to $15 billion.

Multiple Labor MPs including ministers have told the ABC it looks like the government has something to hide.

A new analysis has suggested Ukraine's made its largest battlefield gains in more than two-and-a-half years, against Russia's ongoing invasion.

It comes as the latest round of United States-brokered peace talks between Kyiv and Moscow ends in gridlock.

The territorial gains come as Russia's military struggles with communications issues after having their access to Elon Musk's Starlink satellite internet system blocked.

A former senior Coles manager has admitted the supermarket giant's pricing guidelines were breached during a 'Down Down' promotion.

The competition watchdog has been accusing Coles of misleading customers by pushing up prices before applying the 'Down Down' discount.

The senior manager admitted internal pricing guidelines, designed to stop customers being misled, were not followed.

The Federal Court trial continues today in Melbourne.

Australia's Danielle Scott has won silver in the women's aerial skiing final at the Winter Olympics.Scott qualified in second place after the event was delayed a day due to heavy snowfall in the Italian alpine town of Livingo.Scott's medal is a record-extending sixth for Australia at these games.

Listen to the latest updates from ABC News

Listen to the latest updates from ABC News

Listen to the latest updates from ABC News

Listen to the latest updates from ABC News

Listen to the latest updates from ABC News

An Australian citizen, linked to Islamic State, has been issued with a temporary exclusion order, banning them from returning home for up to two years.

The group of 34 women and children left a camp in Syria this week with the intention of returning to Australia but were turned around by local authorities.

Home Affairs Minister Tony Burke says at this stage, security agencies have not advised whether the other Australians meet the threshold for an exclusion order.

Australian politicians are being urged to act on their commitments to create social cohesion, after inflammatory comments about Muslims by One Nation leader Pauline Hanson.

She's been condemned across the political spectrum for claiming there are "no good Muslims" on Sky News earlier this week.

While she's offered a conditional apology, Senator Hanson has refused to apologise for speaking out against what she's labelled the threat of 'radical Islam'.

Victoria has lost the Australian Motorcycle Grand Prix after almost three decades hosting the event.

Yesterday, the state government revealed it had rejected a request from operator Dorna Sports for the MotoGP to be moved from Phillip Island in Victoria's south-east, to Albert Park in inner Melbourne.

The event will instead leave the state entirely, in a major blow to Phillip Island, which has hosted the MotoGP since 1997.