Police are appealing for witnesses following a serious road traffic collision.
At approximately 4am yesterday morning (Sunday, February 21) a car failed to stop when signalled to pull over by police officers.
A pursuit ensued for a short while until it was called off due to the wider risk to the public.
Shortly afterwards the car, a white Audi A3, collided with a tree, near Clophill.
The road was closed until around midday while investigations were carried out. One person was taken to hospital with serious injuries and remains in a critical condition. Two further people were treated for minor injuries.
The circumstances of the incident are being examined by the Bedfordshire Police Professional Standards Department.
Anyone who witnessed the incident, or saw the Audi prior to the collision, is asked to contact police on 101 with information.