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5 May 2015, 09:28
Police say one person has been seriously hurt in a crash on the A1M.
The crash happened southbound this morning, at the Alconbury slip road.
Four vehicles were involved, two HGVs and two cars.
Cambridgeshire fire and Rescue service have been on the scene, cutting out those who were hurt.
One person's been left with serious injuries.
Drivers are being warned to avoid the area.