Lincolnshire Police closed off a busy road near Horncastle and Spilsby after a car and van crashed.
Motorists are being advised to avoid the A158 Main Road near to Hagworthingham.
Around three miles of the road have been closed while officers deal with the collision.
It is unclear at the time of writing whether there have been any injuries.
This is a breaking news story and will be updated when we get more information.