A man reached under a woman's dress and touched her inappropriately on Saturday in Oxford.

Thames Valley Police is appealing for witnesses following the sexual assault.

The offence happened at around 3.30pm on Saturday when the victim, a woman in her thirties, was walking along Hollow Way, Oxford.

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At the junction of Crescent Road, she was approached from behind by a man who reached under her dress and touched her inappropriately.

The woman ran away.

The man is described as white, around 6ft tall, with short, shaved hair and was wearing a short sleeved t-shirt.

Investigating officer, PC Matthew Stansfield, based at Cowley police station, said: “I am appealing for any witnesses, or anyone who has information about this incident to please come forward.

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“I am also appealing for anyone in the local area who has CCTV, or any motorists who have a dash-cam, to check any footage in case it may have captured something that would assist with the investigation.

“Anyone with information can contact police by making a report online quoting reference 43200136802.

“You can also call 101 if you so not have access to the online service.

“Alternatively, if you wish to remain anonymous, you contact the independent charity Crimestoppers on 0800 555 111.