Police are trying to trace a woman who may have witnessed an incident in Shadyside, Hexthorpe, at around 9.25pm on Monday, June 23.
At 1.20am on Tuesday, June 24 it was reported to South Yorkshire Police that a 42-year-old man had been taken to hospital the previous night with serious head injuries.
Officers are now seeking to discover what may have happened to the man, who remains in a critical condition in hospital.
It is thought that a woman who was driving a dark-coloured car along Shadyside at around 9.25pm on Monday evening may hold information vital to the inquiry.
It is believed that she spoke to the ambulance service and gave them information on the incident, and she may now be able to further help police discover how the victim came to suffer his injuries.
The woman, or anyone else with information, should call South Yorkshire Police on 101, quoting incident number 57 of 24 June 2014.
Alternatively, call Crimestoppers, anonymously, on 0800 555 111.
- See more at: http://www.southyorks.police.uk/news-syp/did-you-drive-dark-coloured-car-through-hexthorpe-doncaster-monday-night#sthash.TNlDrSJz.dpuf