Officers are appealing for information following a serious collision in Warrington.
At around 1.50am on Sunday 2 October officers were called to Chester Road to the junction of Slutchers Lane following reports of a collision involving a grey Volvo XC60 and a pedestrian.
The pedestrian, a 27-year-old local man, was taken to Aintree Hospital with serious and life-threatening injuries.
The driver of the car, a 32-year-old man from Runcorn, was arrested on suspicion of causing serious injury by dangerous driving. He has since been released under investigation, pending further enquiries.
Police are now appealing to anyone who may have witnessed the collision or may have captured dashcam or CCTV footage to come forward.
Anyone with information is asked to contact Cheshire Police via the Cheshire Police website quoting IML 1379365 or call 101.
Information can also be passed on to Crimestoppers anonymously via the Crimestoppers website or call 0800 555 111.