Three ambulances, a paramedic officer and the Warwickshire and Northamptonshire Air Ambulance were sent to the scene.
A woman and two children have been hurt after a collision with a car.
It happened Monday afternoon on Bulkington Lane in Nuneaton.
Three ambulances, a paramedic officer and the Warwickshire and Northamptonshire Air Ambulance were sent to the scene.
A West Midlands Ambulance Service spokesman said: “On arrival ambulance staff found a woman and two children injured.
“All were treated at the scene before being taken to University Hospital Coventry & Warwickshire.
“The doctor from the aircraft travelled with the boy who had suffered multiple potentially serious injuries.
“The woman who was in her 30s had also suffered serious injuries; the aircraft critical care paramedic accompanied the ambulance crew en-route to hospital.
“The girl had less serious injuries.
“The driver of the car, an elderly man, was shaken but uninjured and did not need hospital treatment.”
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