A lane of the A12 approaching the Copdock Interchange near Ipswich has been blocked after a lorry broke down.
The HGV broke down in the first lane of the northbound carriageway shortly after 8am, Suffolk police said.
A police spokesman confirmed officers had been dispatched to the scene as the vehicle awaits recovery.
The AA traffic map is suggesting queues are building on the northbound carriageway in rush hour as workers head to the office.
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 The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.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