The big picture: Seven fire crews from two counties and multiple police and ambulance crews are at the scene of the crash, where an overturned lorry is partially blocking the northbound carriageway of the A12.
Traffic is stationary as far back as Stratford St Mary, with delays expected to increase.
What we know: Suffolk Fire and Rescue Service was called at 14:47 to the collision. Two casualties are understood to have been treated by the ambulance service.
The bottom line: Motorists are advised to avoid the area and find alternative routes.
