A woman was followed from a train station by a man who then indecently exposed himself to her, police said.
Now officers have issued a CCTV image of a man they want to speak to in connection with the crime.
The incident happened between 10.20pm and 10.30pm in Peel Street, Macclesfield.
It is believed that the man followed the woman from the town's train station before exposing himself on Friday, July 16.
The suspect is described as a white man, in his mid-30’s, around 5’ 11” tall, of medium build, with short blond hair and small eyes.
The man was wearing a blue T-shirt with white piping on the sleeves, and light blue jeans.
In a statement Cheshire Constabulary said: "Enquiries in relation to the incident are ongoing and as part of the investigation officers have released CCTV images of a man who may be able to help with their enquiries."
Police Constable Phoebe Keen, of Macclesfield Local Policing Unit, said: “I would like to reassure the local community that this appears to have been an isolated incident and we have not received any reports of similar offences in or around the Macclesfield area.
“Enquiries in relation to the incident are ongoing and we are committed we are doing everything we can to trace the person responsible.
“As part of our investigation we are appealing for anyone who was in the area and believes they may have seen the offender to get in touch.
“The same goes for anyone who thinks they may know who the offender is, or have dashcam or CCTV footage of him.”
Anyone with information or footage that may help officers with their investigation should call Cheshire Constabulary on 101, or visit www.cheshire.police.uk/tua quoting IML-1039382.
Information can also be reported anonymously via Crimestoppers anonymously on 0800 555 111.
