The driver, a 42-year-old female ambulance technician, and the patient, an 88-year-old man, were pronounced dead at the scene.
A male crew member and a male relative of the patient remain in hospital both in a serious condition.
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Did Father Christmas bring you an unmanned aerial vehicle (UAV) or drone for you to fly last night?
Lemurs and Emperor Tamarins at Cotswold Wildlife Park have been joining in the festive spirit.
Lucy has the Christmas Eve forecast for the east of the Meridian region.