A 10-year-old girl is in a critical condition after being knocked down by a police car outside her home in Devon.
Emergency services were called to an unclassified road in Tiverton on Saturday morning, near Stoodleigh Cross and Loxbeare.
The girl suffered significant head injuries and was taken to the Royal Devon and Exeter Hospital, then flown to Frenchay Hospital near Bristol.
The Independent Police Complaints Commission has been informed.
An investigation into the accident by the Devon and Cornwall force traffic department was overseen by specialist collision scene investigators from an independent force.
Supt Tim Swarbrick told BBC News the girl was believed to have been playing on a bicycle with her twin sister in the driveway of her home shortly before the accident happened.
He said the police vehicle involved had been on a routine patrol and was not responding to an incident.