Police are investigating following a three-vehicle crash in the Southern Highlands today.
About 12.30pm (Sunday 25 February 2018), emergency services were called to the Hume Highway at Alpine, following reports of a multi-vehicle crash.
Police from The Hume Police District located the driver of one vehicle, a man, suffering serious pelvic and leg injuries.
A man driving a second vehicle and a female passenger, both believed to be aged in their 20s, suffered serious fractures and abdominal injuries.
All three were taken to Liverpool Hospital in a serious condition.
The driver of a third vehicle, a 37-year-old woman, was treated for shock and taken to Bowral Hospital.
Officers from Crash Investigation Unit established a crime scene and are investigating.