Police are appealing for information and witnesses following a report of indecent exposure in the Mountsandel Road area of Coleraine on Wednesday evening, 16 October.
It was reported that a female, walking in the area at around 7pm, was approached by a male.
The man made an offensive comment to the woman, exposed himself and touched her inappropriately, before running off.
He is described as being aged in his late teens or early twenties, of slim build, around 5’ 4” in height, and wearing a maroon hooded-top and blue jeans.
Police say the woman was left badly shaken and are appealing to anyone with information, or who noticed any suspicious activity, to get in touch on 101, quoting reference number 423 of 17/10/19.
Alternatively, information can be provided to the independent charity Crimestoppers on 0800 555 111, which is 100% anonymous and gives people the power to speak up and stop crime.