Police have been forced to close Six Hills Way in Stevenage after there was a collision between a police car and another vehicle on the road earlier today.
Four people have been injured, a woman with a baby who were travelling in a silver Vauxhall and two police officers.
All four of those injured have been taken to hospital for treatment.
The road remains closed from Rockingham Way to Valley Way in both directions and police are advising motorists to avoid the area.
The Colestrete junction is also closed.
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