A father reportedly discovered his wife and two children were involved in a fatal car crash after being notified by his Apple watch.
Ian Prahastono's watch alerted via its Crash Detection safety feature shortly after 11am on Mondy morning.
The alert came after his wife Katrina Sila, 34, and their two-year-old son Kai Prahastono involved in a car crash when their SUV collided with a cement truck on a motorway in Sydney, Australia.
Tragically both were instantly killed with their couple's youngest child, three-month-old Ivy, became trapped in the wreckage for up to an hour.
Ivy was eventually freed and was airlifted to The Children's Hospital at Westmead in critical condition, before sadly succumbing to her injuries on Wednesday morning.
Ian was at work when the harrowing crash occurred, before spending two days at his baby daughter's hospital bedside.
He was alerted by his Apple Watch moments after the crash, according to 7 News.
The watch used sensors to detect jolts which could occur from a collision, and can go on to notify emergency services where help is needed.
A male truck driver, 48, was not injured and since undergone mandatory drug and alcohol testing.
Police are investigating the crash's circumstances and will prepare a report for the coroner.
A devastated relative said: "We would like to express our gratitude for the support everyone has shown us...strangers we don’t even know, and first responders, everyone that was on the scene and everyone who tried to help."
Katrina was remembered as a "loving mother, devoted wife and friend to many," by pals.
Ambulance NSW Superintendent Mark Gibbs said it was a "challenging scene" for paramedics to attend.
"It is hard to think anybody did survive that wreckage - such a tragic and high-speed incident," he said.
