Orwell Bridge (Image: Archant)
Police were called to the incident on the A14 in Ipswich just after 8am.
Traffic is currently at a standstill on the eastbound carriageway on the approach to the Orwell Bridge.
The incident involved a Vauxhall combo vehicle, a Seat Ibiza and a Ford Fiesta and was damage only.
All vehicles had been moved to the hard shoulder by 8.20am.
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