Police officers were called to a three vehicle collision on the London bound carriageway of the A12 close to the Hatfield Peverel junction.
The collision between the silver Ford Mondeo, white Citroen Berlingo van and blue Vauxhall Corsa happened at 7.20am today.
No one was injured but officers remain at the scene, where the outside lane is still blocked.
Essex County Council's travel feed was reporting queues back to the Witham south junction.
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