Drivers are facing delays after a crash blocked a lane on one of Essex’s busiest roads.
The A12 northbound is affected at Junction 20B for Hatfield Peverel North, with one lane blocked following the collision.
Queueing traffic is being reported as motorists head towards Witham, with congestion building on the approach to 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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