A man has been arrested after a woman was sexually assaulted in a city park. 

A 19-year-old woman was grabbed by a man unknown to her in Hoglands Park at 1.30am on Saturday morning.

A man in his 20s was arrested yesterday on suspicion of sexual assault but has been released with no further action.

The man who grabbed the woman has been described as 'Asian or Arabic'.

According to police, he fled the scene on foot after the assault. 

READ MORE: Girl, 12, seriously injured after being hit by a car

He was wearing a distinctive yellow jacket and is described as around 5ft 6ins tall, of average build, with short black hair, and a moustache.

People can expect to see uniformed officers out on patrol in this area this weekend as enquiries continue.

Detective Inspector Joanne Beresford said: "We are investigating this incident thoroughly, scoping CCTV footage from the area, and are closely supporting the victim.

"If you have any concerns at all while you are out in the area, please do not hesitate to approach the officers."

The investigation is ongoing. 

Anyone with information is urged to contact police on 101, quoting crime reference number 44230097892.

Alternatively, they can contact Crimestoppers anonymously on 0800 555 111.