The main road along Preston’s Docks had been closed following a crash.
A BMW X5 is involved in the incident between McDonalds and Morrisons in Mariner’s Way.
It is understood the vehicle involved is a police vehicle.
A green Vauxhall Astra is also involved.
Preston Police closed the road around 8.45am on Friday (13 October).
Read more: Police chase in Fulwood ends with car crashing into a hedge
Mariner’s Way reopened to traffic around 11am on Friday.