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.
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Sunny spells, especially in the morning before it turns cloudy later. Feeling cooler than yesterday.
Showers will drift north across eastern coastal counties this evening with thunderstorms out to sea. Fine again tomorrow.
Doctors are warning that millions of people who go to A and E don't actually need to be there.