Police officers want to hear from witnesses to a collision on the Brook Hill roundabout in Sheffield.
A black Vauxhall Astra and a small, red car collided on the roundabout at Netherthorpe at 12.50pm on Thursday, April 16.
The red car did not stop at the scene and is reported to have driven off towards Netherthorpe Road.
The occupants of the Astra were unhurt.
Witnesses or anyone with information should call South Yorkshire Police 101 or Crimestoppers, anonymously, on 0800 555111.