
It happened on the southbound side of the road at the Bowes Incline after junction 66, close to the Angel of the North.
The cars involved are blocking one lane of the road.
The North East Live Traffic account tweeted: "A1 Southbound after J66 at #BowesIncline.
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"Three vehicles are blocking a lane, expect delays."
The car has since been moved to a grass verge.