Two officers have been injured after a crash involving three police cars in Filby.
The driver and passenger of one of the vehicles are being treated for minor injuries.
The crash happened at around 10am, while the cars were taking part in a training exercise.
The two injured men had to be freed from their vehicle by the fire service.
The A1064 was shut between Ormesby Lane and Pound Lane as a result; it had reopened by 3pm.