The A14 is partially blocked westbound at Rougham due to a car colliding with the central reservation.
Police and ambulance crews are currently at the scene, close to junction 45.
The accident involved two vehicles, a black Volkswagen Polo and a Ford Transit van.
The driver, an elderly male, is not thought to have hurt in the accident.
The carriageway was cleared by 8.40am.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here