There are delays on the route (Image: Google Maps)
Drivers are facing delays after a crash partially blocked one of Essex's busiest roads.
The A12 southbound is partially blocked after Junction 20A for the B1137 at Hatfield Peverel South, with slow-moving traffic reported following the collision.
The incident is causing disruption for motorists heading towards Chelmsford and London as traffic moves past the scene.
It is not yet known how many vehicles were involved or whether anyone has been injured.
Drivers are being advised to allow extra time for their journeys while the incident is dealt with.
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