A stretch of the Ipswich-bound A12 is currently blocked following a multi-vehicle collision near to the Jobserve Community Stadium.
The accident happened on Tuesday evening, September 24, between junctions 27 and 28.
There have also been reports from the AA of an accident at junction 25 at the meeting with the A120.
Traffic maps currently show more than 10 miles of traffic queues heading back towards Kelvedon.
The extent of any injuries at either accidents is not currently known.
The accidents could potentially cause yet more disruption for football fans following an earlier collision at Kelvedon.
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