Police are appealing for witnesses to an alleged sexual assault on a 45-year-old woman near Conisbrough railway station.
It happened around 12.45pm on Wednesday, May 14 just off Doncaster Road when she was approached by a man on a bicycle who is believed to have said she had dropped something on the floor.
The woman retraced her steps back to a footpath, when the man is then alleged to have grabbed her from behind and pulled her onto wasteland off the footpath.
The woman managed to break free and the man kicked and hit her in the back before running off.
He is described as white, approximately 6ft 3ins tall and of a slim build. He was wearing a black and red motorcycle helmet that he did not remove.
Anyone who may have witnessed the incident is asked to call police on 101, or Crimestoppers anonymously on 0800 555 111, quoting incident number 458 of May 14.