Woman dies after being struck by truck on Sydney motorway

Traffic has built up on a busy Sydney motorway as police establish a crime scene around a horror crash site after a woman was fatally hit by a truck.

A woman has died after being struck by a truck on a Sydney road. Picture: Supplied​

Police have revealed the tragic set of circumstances they allege led up to a woman’s death on a major Sydney road.

Emergency services were called to the scene at Cowpasture Rd between Newton Rd and The Horsley Drive about 6.30am after reports of a serious crash between a pedestrian and a truck.

However, the original call-out was in response to a minor collision between the truck and a sedan.

While emergency services rushed to the scene, a 55-year-old woman was standing near the crash scene when the truck allegedly moved forward, striking her, police said.

A woman was killed when she was allegedly hit by a truck at Wetherill Park. Picture: 9 News

Police understand the woman had been supervising a 17-year-old boy learning to drive when the alleged incident occurred.

Paramedics worked to revive the woman, however she died at the scene.

The 17-year-old was treated for shock but otherwise uninjured.

Traffic was banked up on the road for a number of hours after the incident, with drivers advised to avoid the area.

She was reportedly supervising a learner driver at the time. Picture: 7News

The driver of the truck – a 51-year-old man – was not injured but was taken to Liverpool Hospital for mandatory testing.

No charges have been laid.

A crime scene was established and will be examined by specialist officers from the Crash Investigation Unit.

A report will be prepared for the information of the Coroner.

Originally published as Woman dies after being struck by truck on Sydney motorway