A teenage girl was sexually assaulted by a man at an Oxford bus shelter, police have said.

Two girls, both in their teens, were walking along Hollow Way in Cowley at around 4.30pm yesterday (Sunday, November 5) when the assault took place.

The victims noticed a man sat at the bus shelter looking in their direction, performing what police described as “an inappropriate act.”

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As they passed the man, he “sexually assaulted” one of the girls by touching her "inappropriately" over her clothing, police said.

The victims confronted the man, who ran off towards Bulan Road.

They followed him to Coverley Road, before losing sight of him.

No arrests have been made at this point.

The offender is described as a man in his 30s, approximately 5ft 11in tall with pale white skin.

He was of an average build and had very short shaven hair.

He was wearing a neon green hooded jumper, and cream cargo shorts which came to just above the knee.

Investigating officer PC George Kay, based at Cowley police station, said: “I am appealing for anybody who witnessed this to please get in touch with Thames Valley Police.

“You can do so by making a report online or by calling 101, quoting reference number 43230497926.

“Alternatively, for 100 per cent anonymity, you can also call the independent charity Crimestoppers on 0800 555 111.”