Debris has now been cleared away after a lorry and a car crashed on the A12.
The crash happened near Essex County Fire and Rescue Service headquarters at Kelvedon on the southbound carriageway near junction 23.
One lane was partially blocked. Emergency services are on scene.
The crash took place shortly before 6.45am and has caused major delays with traffic is queuing back to the Avenue of Remembrance in Colchester.
The ambulance service confirmed they were not called to the scene.
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