A man arrested in connection with a serious sexual assault on a 16-year-old girl has been bailed, police have confirmed.

The 19-year-old was arrested in the hours after the incident, which happened in Cardiff city centre on Saturday night, shortly before 11pm (September 18).

Today, South Wales Police has confirmed that the man has been released on conditional bail, while investigations continue.

The incident, which the force has described as a "serious sexual assault", is believed to have happened in the area surrounding Sandon Street and Adam Street, in the heart of the capital.

A 16-year-old girl was taken to the University Hospital of Wales following the incident, but has since been discharged.

She is currently being supported by her family and specialist officers.

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What have police said?

Detective Inspector Grant Wilson, from South Wales Police, said: “Sexual assault is one of the most traumatic and devastating experiences a person can suffer and we at South Wales Police are committed to providing a first-class service to victims.

“In Cardiff we have a strong tradition of partnership work to keep our city safe and we would like to take this opportunity to acknowledge the public and city centre business community for their continued help and support during this on-going investigation.

“While the person arrested has been arrested on conditional bail, our investigation is very much on-going and a team of detectives are carrying out extensive enquiries in and around the city centre.

“If anyone has concerns about what has happened or has information that can assist us, please approach a police officer or contact us by one of the following means.”

Anyone with information is urged to contact police.

This can be done online here, by email at SWP101@south-wales.police.uk, or via private message on Twitter or Facebook.

Crimestoppers can also be contacted anonymously.

Anyone sharing information is asked to quote crime reference number 330151.