A mother who died during a horrific crash on a NSW motorway with her two children may have made a fatal error.
A relative has spoken out, saying Katrina Prahastono, 34, was chatting to a friend on speakerphone and had missed a turn-off just before her SUV collided with a cement truck on the Hume Motorway at Menangle Park last week.
WATCH THE VIDEO ABOVE: Family share heartbreak over Menangle Tragedy.
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Prahastono and her son Kai, 2, died on impact just after 11am last Monday, and her three-month-old baby Ivy was airlifted to hospital but died of critical injuries last Wednesday.
One of Prahastono’s relatives has revealed the mother-of-two’s final moments, telling The Daily Telegraph that Prahastono was chatting to a friend on speakerphone and “got distracted”.
“Kat said to her, ‘Oh no, I’ve missed my turn, now I’ll have to try to turn around somewhere’,” the relative told the newspaper.
“The friend she was speaking to has told police.”
It is unclear whether this contributed to the accident, and NSW Police told 7NEWS.com.au that they are unable to comment on the ongoing investigation.
The family was returning home after a morning of planning Ivy an Aqiqah – a traditional Islamic celebration that takes place after a child is born to express gratitude for Allah, according to the newspaper.
7NEWS understands Prahastono’s husband Ilham was at work when his Apple Watch detected his wife’s vehicle had been in a serious crash.
Prahastono’s best friend Diana Effendi who was with the 34-year-old and her two children at playgroup just hours before tragedy struck, told 7NEWS that Illham has “lost everything”.
“He’s lost his world. The love of his life, his perfect boy, his princess – that’s his words.”
“Getting used to his new life (is) like starting all over again,” Illham’s sister Astrid Wiradilaga added.
Illham has thanked those donating to a GoFundMe organised by Effendi to help with burial costs and the rebuilding of his life.
“I’m still in awe at how much everyone has contributed to assist me in such a testing period and to help me rebuild my life,” Illham said on Monday.
“I understand that we are all facing our own trials and tribulations.
“There is so much uncertainty in the world and the fact that so many people have dug deep to help me has filled me with so much hope.”
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