A lorry was left hanging over a bridge on the A14 in Cambridgeshire following a crash with a highways vehicle.
The collision happened at the Spittals roundabout in Huntingdon shortly after 0315 BST.
Police said part of the lorry was hanging over the bridge. The driver has been taken to hospital with serious but not life-threatening injuries.
Road closures have been lifted and the lorry has been cleared from the scene.