An investigation is under way following a collision in Avonmouth on Saturday 30 July.
At approximately 11.35pm a collision occurred in Poplar Way between a police vehicle and a Volkswagen Sirocco.
A passenger in the Volkswagen sustained an injury and was taken to hospital. They have since been discharged following treatment.
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Two police officers also attended hospital as a precaution.
Avon & Somerset police are in the process of making a mandatory referral to the Independent Office for Police Conduct due to police involvement in the collision.
Any witnesses or other motorists with dashcam footage are asked to call 101 and give reference number 5222182320.
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