Boy, 12, dead after a hit-and-run crash outside a secondary school in Loughton, Essex
Debden Park High School's head teacher "devastated" to confirm the boy was one of its students
The collision happened near Debden Park High School at about 15:30 GMT
Police want to speak to 51-year-old Terry Glover over the crash
Two 15-year-old boys, one 13-year-old boy, one 16-year-old girl and a 53-year-old woman were injured
Essex Police is treating the incident as a murder investigation.
The force said a 12-year-old boy died after being taken to hospital.
Five others were injured in the incident: two 15-year-old boys, one 13-year-old boy, one 16-year-old girl and a 53-year-old woman.
Police believe the teenagers were all pupils at Debden High School.
Essex Police has confirmed a 12-year-old boy has died in the incident, which the force is treating as murder.
More to follow.
Insp Rob Brettell said Essex Police was "trying to locate" a silver Ford KA in connection with the investigation.
He said the car was "likely to have damage" to its front.
He has appealed for anyone who may have seen it to contact officers on 999.
Here's a few more pictures from the scene, where there's a large police presence.
Willingdale Road in Loughton remains cordoned off.
Police said the road could not be accessed from junctions on either side of Debden Park High School.
Insp Rob Brettell said Essex Police was "aware of a lot of speculation from social media".
He said the content "could cause further worry and upset to the community and family", and said people should wait for official updates.
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Charlotte Rose
BBC Essex
I'm at the scene in Loughton, where I can see at least seven police cars on Willingdale Road.
Essex and Herts Air Ambulance said it had treated "a number of patients".
Officers are still at the scene of the incident and described it as "fast moving".
Essex Police urged people "not to speculate on the circumstances or people involved".
The force said it wanted to ensure any updates were "accurate".
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An Essex Police inspector said the investigation into the incident was "likely" to be "prolonged and serious".
Insp Rob Brettel said the force "urgently need the public's assistance and help".
He appealed for anyone with dashcam footage, CCTV or information to contact officers on 101 or via Crimestoppers, external.
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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.
Stay with us for the latest updates.
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