Wiltshire Police are looking for a man who sexually assaulted a woman by touching her bottom as he ran along side her.
The 36-year-old woman was jogging on Woodcock Lane, Warminster around 7.30am on Thursday 10 August.
She shouted at the man and pushed him away, after which he ran in the direction of Fairfield road.
The man was carrying a maroon-coloured backpack, wearing a white shirt and grey coloured trousers.
He is believed to have been approximately 5 feet 7 inches tall and clean shaven with short, fair hair.
The man is described as being between 20 and 30 years of age. Wiltshire Police
Anyone with information is urged to call police on 101, or Crimestoppers anonymously on 0800 555 111.