THE A12 southbound near Kelvedon is likely to be shut well into this evening (October 8) after a "serious collision" involving two lorries and two cars.
Emergency services are at the scene of the accident and have closed the road between Marks Tey and the Kelvedon turn-off. It is likely to remain shut for four to five hours.
Officers were called at about 3.45pm after reports of a collision involving two cars and two lorries.
A number of injuries have been reported although none is thought to be life-threatening. Paramedics and the crew of an air ambulance were called to the scene.
Essex Police said the road will remain closed until all vehicles are recovered and a large diesel spillage is cleared from the carriageway.
Drivers have been urged to avoid the area until the closures are lifted.
The northbound carriageway was not affected by the collision but there are currently long delays caused by drivers slowing down as they pass the scene of the collision.