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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It will be a breezy morning but largely dry with some brightness. Rain will sweep in from the west during the afternoon. Highs of 16 deg C.
Becoming cloudier and breezier into the evening, with a little light rain at times. It will be much milder than of late. Lows of 7 deg C.