A number of people have been injured in a serious crash outside a secondary school.
The collision happened near Debden Park High School in Loughton, Essex, at about 15:30 GMT.
Essex Police said there was likely to be a “serious and prolonged investigation” and asked the public not to speculate on the circumstances.
Essex and Herts Air Ambulance said it had treated “a number of patients” at the scene.
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