Traffic has been held on the A14 due to an incident.
Drivers have been stopped by emergency services between junction 35 and junction 36 near Newmarket.
Cambridgeshire Police, fire crews and the East of England Ambulance Service are all in attendance.
Traffic sensors show heavy delays and around 2-miles of congestion on approach to the incident.
This is an ongoing incident with more to follow.
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 The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.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