There were long delays on the A14 near the Orwell Bridge outside of Ipswich.
Police were called to a broken down vehicle near Seven Hills Interchange for Felixstowe on the eastbound carriageway at about 8.30am on Tuesday.
Traffic was queuing back to the Copdock Interchange roundabout.
A spokesman for Suffolk police confirmed that officers had been called to assist.
According to the AA Traffic Map there were delays of about 15 minutes.
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 The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.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