SHOCKING footage of a New South Wales police car that performed a dangerous u-turn manoeuvre in front of a truck has been shared on Facebook.

The video, captured by a truck driver's dashcam, shows him driving along the highway when suddenly a police car appears in front of the 38-tonne semi-trailer on the opposite side of the road, reverses and then drives down the highway.

A screen shot from the video shows the police car performing the manoeuvre in front of a truck.
A screen shot from the video shows the police car performing the manoeuvre in front of a truck.

The footage was shared in a Facebook group called "OH F**K" and according to comments on the post, shared yesterday, it happened last week at Beresfield, west of Newcastle in New South Wales.

Big Rigs has contacted the driver who posted the video for comment.

New South Wales police Traffic and Highway Patrol Command are investigating the incident.

A screen shot from the video shows the police car continue to drive down the highway.
A screen shot from the video shows the police car continue to drive down the highway.
Big Rigs

Mike keeps the trucks moving

Mike keeps the trucks moving

Parts man has serviced the region for amazing 47 years

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"If conditions aren't right, make noise or down tools”