Person comes forward on Perth sex assault

A person has come forward to West Australian police after they released clear photographs of a man suspected of committing an indecent assault near a Perth train station.

The man allegedly engaged the 23-year-old woman in conversation before forcing her to the ground and indecently assaulting her as she walked away from the Grant Street station in Cottesloe in the early hours of December 6.

Police say she fought him off before running away, and he then returned to the station.

They later said there had been a huge public response to the call for information and a person had come forward.