A woman armed with a knife has been tackled to the ground by police after allegedly threatening drivers and blocking traffic on a busy highway.
The tense scenes were captured by a truck driver traveling on the M1 highway on the NSW Mid North Coast at 4pm on Tuesday.
In the shocking video, the 52-year-old woman was seen holding the large knife as police officers tried to negotiate with her from about 10 meters away.
As the woman starts walking towards the officers, a man runs after her, tasers her and then throws her to the ground.
Other officers at the scene seized the knife, believed to be a machete, before the woman was arrested and taken to Taree police station.
The 52-year-old had allegedly threatened other drivers and blocked traffic before officers arrived on the scene in Koorainghat, a coastal town near Taree.
She was charged with attempted stalking/intimidation for the purpose of fear of (personal) harm, common assault, possession or use of a prohibited weapon without a permit and use of a knife in public places causing the person to fear for his or her safety.
The woman was refused bail to appear in Taree Local Court on Wednesday.
The woman, who appeared to be armed with a large knife, was arrested after she allegedly threatened motorists and became involved in a confrontation with police (pictured)
The woman was tasered by an officer on the M1 motorway and wrestled to the ground
Officers blocked the northbound lanes of the M1 motorway as the incident unfolded and drivers were temporarily brought to a halt.
The police investigation into the incident continues.