There are delays on the A47 Wisbech by-pass as emergency services deal with a four vehicle collision which injured two children and two adults.
Motorists are advised to avoid the road following the incident this afternoon.
An East of England Ambulance Service spokesman said: “The East of England Ambulance Service Trust was called to a road traffic collision on the A47 near Wisbech at 2.55pm today (Wednesday 12th August).
“Two ambulances and an ambulance officer attended and treated two adults with chest and neck pains and two children.
They have all be taken to Queen Elizabeth Hospital.”
The injuries are not thought to be too serious.
It is not known how long it will take before the road is cleared.