Police who forced a car to stop after a 50-mile pursuit at speeds up to 140mph said they found a three-year-girl was a passenger in the vehicle.
North Yorkshire Police said officers began following a grey Audi A4 on the northbound carriageway of the A1 near Catterick.
But the car turned round at Scotch Corner and began heading south on the other side of the road.
A force spokeswoman said: "The vehicle continued south at speeds over 100mph, weaving in and out of traffic and onto the hard shoulder. With the assistance of the National Police Air Service, officers stopped the vehicle on the exit slip road of the A1 near Boston Spa."
The spokeswoman said a 31-year-old man and a 22-year-old woman, both from Rotherham, were arrested at the scene and added: "A three-year-old child was also inside the vehicle".
The officers involved took to Twitter to explain how they used Tactical Pursuit And Containment (TPAC) techniques to box in the car and bring it to a halt.
The spokeswoman said the incident began at about 4.25pm on Tuesday.
She said: "Police recovered a large quantity of cannabis from the vehicle.
"A number of motorists will have witnessed the suspect vehicle's manner of driving and officers are appealing to them to come forward including any that were hit by the vehicle."
She said no-one was injured in the incident.
Sergeant Paul Cording told ITV News Calendar: "Speeds up to 130mph to 140mph are completely inappropriate but, obviously, when we got the vehicle stopped, to find a passenger in the back seat and an unrestrained three-year-old child ... you see a lot of things in our job but my colleagues who actually stopped the vehicle said they were absolutely gobsmacked by what they saw when the vehicle was stopped."