Police are appealing for witnesses following a collision between a coach and a lorry on the A1 yesterday (Sunday).
It happened on the northbound carriageway at Diddington, south of Buckden, at around 5.30am.
The coach had been returning to Newcastle-upon-Tyne from London. 11 people suffered serious injuries and 35 suffered minor injuries. Two people remain in hospital.
Sergeant Gordon Murray said: "I would appeal for witnesses to the collision or anyone who saw the vehicles in the moments leading up to the incident."
Anyone with information should contact the roads policing unit on 101.
Investigations are continuing after a coach and a lorry crashed on the A1 in Cambridgeshire.
It happened on the northbound carriageway near Buckden at about 5.30 yesterday morning.
Ambulance, police and fire crews were called to the scene. Thirteen people were taken to hospital - two of them with serious injuries. All were released yesterday.
The remaining passengers went to a temporary rest centre before continuing their journey from London to Newcastle. The northbound carriageway was blocked for most of the day.
The A1 northbound has reopened after a day of disruption following a crash between a coach and a Tesco lorry. Thirteen people from the coach were taken to hospital after the collision at 5.30am at Diddington. Those on board were heading home to Newcastle after a works outing in London.
It's been reported that coach passengers being treated for their injuries after a crash on the A1 at Diddington have all now been released from hospital. The coach was carrying Carphone Warehouse employees back to Newcastle after an event at Earls Court in London.
Police say the A1 at Diddington is still shut northbound following a crash between a coach and a lorry this morning. It may stay closed for several more hours as work to repair crash barriers continues. Most of the passengers have been able to continue their journey on board a replacement coach.
The East of England Ambulance service says 2 patients have been seriously injured in the A1 coach crash at Diddington.
It says they were taken to Addenbrooke's Hospital while a further eleven patients were taken to Hinchingbrooke Hospital with minor injuries.
The trust sent five ambulance crews and three rapid response vehicles to the scene.
Police say work to clear the northbound A1 at Diddington near St Neots is continuing after the road was completely blocked by a coach crash. Passengers were heading to Newcastle from London when their coach was in collision with a lorry.
Police say 14 passengers were taken to hospitals in Cambridge and Huntingdon, most with minor injuries. The others have been taken to a rest centre to waiting for a replacement coach to continue their journey. One lane of the road heading southbound has now re-opened.
Cambridgeshire Police have launched an investigation. They are appealing for witnesses to the crash to contact them on 101.
Fourteen coach passengers have been taken to hospital after a crash on the A1 at Diddington near St Neots.
The coach, carrying 42 passengers and two drivers, was in collision with a lorry near the Buckden roundabout at 5.30am. Police say most of the injuries are thought to be minor.
Cambridgeshire police are dealing with a fatal accident on the A1 at Diddington. The driver of one of the vehicles died at the scene. The accident happened at just after six fifteen this evening and the road remains closed.