A serious collision involving a lorry and two other vehicles is blocking part of the A1 northbound in Cambridgeshire this afternoon, Monday April 25.
The crash has completely blocked the carriageway at Diddington near Buckden.
Police, fire and ambulance were called at 2.11pm.
A lorry, a Transit van and a third vehicle are understood to be involved.
Police say there are no reports of serious injuries.
Traffic is queuing back to Little Paxton.
More here as we have it...