There were long delays on the A1 southbound in Cambridgeshire this morning, Thursday October 26, after a serious collision.
The road was blocked and police attended the scene of the crash at Buckden.
The collision took place at 8.24am and involved three vehicles.
An elderly man was being treated at the scene by paramedics.
Motorists were advised to avoid the area as there were delays back through the roadworks area as far as the A14/Brampton Hut junction - a journey time of half an hour.
UPDATE: The road was cleared and reopened at 10.10am.