Motorists are being advised to avoid the A15 near Navenby after a crash.
Lincolnshire Police are at the scene of the collision south of Lincoln, where there is slow moving traffic
The dual carriageway has been reduced to one lane while officers attend to the incident.
It is unclear at this time how many vehicles have been involved and whether there were any injuries.
A Lincolnite reporter at the scene said long tailbacks have formed in both directions.
This is a breaking news story and will be updated when we have more information. Get in touch with our team on [email protected]