An 80-year-old man suffered life-threatening injuries after a two-car collision in Derbyshire at the weekend.
Police were called to Skeavingtons Lane in Cotmanhay at just after 9.15am on Saturday after a collision involving an Audi A3 and a Honda Civic.
The 80-year-old man is currently being treated in hospital for his injuries, and a second man also received hospital treatment.
Police are now appealing for witnesses, or anyone with dash cam footage covering Skeavingtons Lane, to contact them, quoting the reference number 19*94637 and the name of the officer in the case, DS Tovell, by calling 101 or via the online contact form at www.derbyshire.police.uk/Contact-Us.
Alternatively, contact Crimestoppers anonymously on 0800 555 111.
* A 30-year-old man has been arrested on suspicion of causing serious injury by driving dangerously and for a positive drugs test at the roadside.