A BMW motorist hit a pedestrian on the M1 before driving off.
The driver failed to stop after Saturday evening’s collision.
Police now want to speak to the driver of the dark-coloured 1 Series model BMW.
Any witnesesses to the incident are also urged to contact police.
The 41-year-old local man was seriously hurt in the incident.
But, police said, his injuries are not thought to be life-threatening.
The driver of the vehicle or anyone who witnessed the incident is asked to contact PS Adrian Newman on 101.
callers should quote log 1694 of August 20.
Alternatively, witnesses can contact Crimestoppers anonymously on 0800 555 111.