A 10 year old boy suffered serious lower limb injuries when he was hit by a car in Bedford town centre just before 10pm on Tuesday.
The youngster was sedated at the scene in Tavistock Street by a doctor and paramedic from the charity-run Magpas Helimedix team.
He was then taken to Addenbrooke’s Hospital by the EEAST Ambulance Service.
A 48 year old man was arrested on suspicion of dangerous driving and is currently in custody at Kempston Police Station.
Anyone with information about the incident is asked to contact Bedfordshire Police via the non-emergency number 101.