Hume Highway crash: Baby Ivy dies after Katrina Sila and son Kai died at scene in Menangle Park

A three-month-old baby has died following the horror highway crash that tragically claimed the life of her mum and older brother. 

Emergency services were called to the Hume Motorway, Menangle Park in Sydney’s south-west on Monday a crash involving a cement truck and a Mazda SUV. 

The SUV driver, Kat Sila, 34 and her two-year-old son Kai Prahastono died at the scene.

Ms Sila’s second child, three-month-old Ivy, was rescued from the wreckage and was airlifted to The Children’s Hospital at Westmead in a critical condition. 

Sadly, little Ivy lost her fight for life early Wednesday morning. 

The male truck driver, 48, was not injured and has will undergo mandatory drug and alcohol testing.

Police are investigating the circumstances surrounding the crash and will prepare a report for the coroner.

Investigators urged anyone with dashcam vision in the area at the time or anyone with further information to come forward.

It is unclear exactly why Ms Sila’s car crossed from the motorway’s southbound lane into the highway’s northbound lane – although the accident was not far from a small U-turn bay.  

‘It is hard to think anybody did survive that wreckage – such a tragic and high-speed incident,’ said paramedic Mark Gibbs, from Ambulance NSW.

Police said Ms Sila was heading to the family’s Denham Court home in Sydney’s south-west, when the tragedy unfolded.  

Katrina Sila (left) had two children with her husband Ilham (right)

Pictured: Emergency services worked to get the trapped baby out of the car 

The force of the collision catapulted the SUV’s engine a hundred metres up the road, witnesses said – with a photo showing it laying by the side of the road.

The truck driver was uninjured and will undergo mandatory drug and alcohol testing. 

Daily Mail Australia understands that both Ms Sila and her grieving husband, Ilham, work in finance.

A family photo posted online in January shows Ms Sila and her husband smiling as they craddled their son and newborn daughter in their arms. 

‘We are heartbroken to announce the sad passing of Katrina Sila and son Kai … a loving daughter, mother, devoted wife, sister and friend to many,’ a family statement said. 

Islamic prayer groups on Facebook issued a post on Tuesday announcing Ms Sila – a Thai Muslim – and her son had passed away in the crash and asked followers to pray for baby Ivy’s recovery. 

Ivy was airlifted to The Children’s Hospital at Westmead where she clung to life for two days before succumbing to her injuries