A 22 -year-old man was rushed to hospital with serious leg injuries after his car left the M56 in Cheshire.
The Vauxhall Corsa was overtaking a blue Astra when it left the motorway at around 5pm on Saturday ( April 3.)
The accident happened junctions 15 and 16 near Chester.
The driver, a 22-year-old man, was taken to Aintree Hospital by ambulance with serious injuries to his legs.
An i nvestigation into the cause of the collision is underway and officers are today appealing for dash cam footage from members of the public.
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PC Karen Mitchell said : “At this stage we know that the silver Vauxhall Corsa was overtaking a blue Vauxhall Astra when it left the carriageway.
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“As part of our ongoing enquiries I am encouraging anyone who may have witnessed the collision, or may have any information or dash cam footage, to please get in touch.”
Anyone with information is asked to call Cheshire Police on 101 quoting IML 954895.
