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.
ALSO READ: Teenager to appear at Oxford Crown Court for attempted murder
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.
ALSO READ: Police hunt ram raiders after village co-op targeted
“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.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here