An accident is causing congestion on the north bound carriageway of the A12 near Stratford St Mary
The northbound A12 was blocked at Stratford St Mary earlier this evening because of a serious crash.
It happened at 5.06pm and both the police and the ambulance service went to the scene.
The air ambulance was also asked to attend.
Initially thought to have involved five vehicles it has now been confirmed one car and a motorbike were involved.
It is believed one person suffered serious injuries in the incident.
Traffic was backing up into Essex for several miles but the road has now reopened.
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