A truck driver and his passenger have died following a B-double crash on the Hume Highway overnight.
Emergency services were called to the highway at Collector Road near Gunning after reports of a truck crash at about 11:15 pm on Monday (27 February).
Officers were told a B-double truck travelling northbound had allegedly crashed down an embankment.
The body of the 33-year-old male driver was found at the scene.
Police located a second body, believed to be his passenger, a short time later.
Both are yet to be formally identified.
An investigation into the circumstances surrounding the crash has begun, with examinations by specialist forensic police continuing today.
As of 4 pm one of the northbound lanes remained closed, with a reduced speed limit of 80 km/h in place.
Police have urged anyone who witnessed the crash – including motorists with dashcam vision – have been urged to contact Goulburn or Yass Police, or Crime Stoppers on 1800 333 000.