Police are appealing for public assistance after a woman was indecently assaulted in Goulburn this afternoon.

The incident happened about 5.25pm (Wednesday 4 May 2016), when the 21-year-old woman was jogging beside the Wollondilly River near Middlearm Road, Goulburn.

Police have been told the woman was approached by a man who touched her inappropriately and pulled her t-shirt.

The woman kicked the man in the groin and she ran away; police from The Hume Local Area Command were alerted minutes later and an investigation began.

The area has been searched by police and a number of items have been taken for forensic examination.

Police have been given a description of a man they believe can assist with this investigation.

The man is described as having a scruffy appearance, of Caucasian appearance, about 175cm tall, unshaven with messy hair, and at the time he was wearing a grey t-shirt with holes in it. The man was described as having a deep voice and a strong body odour.

Anyone with information about the identity of the man is urged to contacted police at Goulburn or Crime Stoppers on 1800 333 000.