The road is closed between Guyhirn and Wisbech while emergency services work at the scene.
There is no information about any injuries suffered in the incident, or how many vehicles are involved.
Motorists are being told to avoid the area.
A47 closed near Peterborough after collision
Police, ambulance and fire and rescue crews are at the scene of a collision which has closed the A47 at Guyhirn..
By Stephen Briggs
Wednesday, 19th May 2021, 10:44 pm