A young girl has been seriously injured after a collision involving a police car in Stevenage.
Emergency services were called to Six Hills Way at about 11.40am following a collision between a blue Citroen C3 and a police vehicle which was responding to an emergency.
The girl was flown to Royal London Hospital by air ambulance and three people were taken to Lister Hospital in Stevenage to be treated for their injuries.
The road has been closed while police remain on the scene.
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