A 28-YEAR-old man has been released under investigation after a 12-year-old boy was knocked off his bike, leaving him in a 'critical condition'.

The incident happened in Ormond Road in Rubery at about 12.45pm on Sunday lunchtime (August 6).

The boy had to be anaesthetised by an air ambulance doctor after a collision with a car, which left him unconscious. 

No car was found at the scene by emergency services but a man who handed himself in at a later point has since been released.

The boy remains in a critical but stable condition.

A West Midlands Police spokesman said: "A 12-year-old boy was knocked off his pushbike by a black Ford Fiesta which did not stop at the scene.

"The owner of the vehicle, a 28-year-old man handed himself in a short time later and was later released under investigation.

"The boy remains in a critical but stable condition in hospital.

"Anyone with information are urged to call 101 quoting log 1280 6/8."

An ambulance was on scene in five minutes and was backed up by a paramedic officer and the Midlands Air Ambulance from Cosford with the MERIT trauma doctor and a critical care paramedic.

A West Midlands Ambulance Service spokesman said: “The Trust received a 999 call stating that the 12-year-old was on his bike when he was in collision with a car.

“When ambulance staff arrived, there was no car at the scene.

“An off-duty nurse was tending to the child when ambulance staff arrived.

“The youngster had suffered a serious head injury and was not fully conscious.

"The doctor on the aircraft decided to anaesthetise him at the scene before he was taken on blue lights to the paediatric major trauma centre at Birmingham Children’s Hospital.

"The doctor and critical care paramedic travelled with the ambulance crew."