A man has pleaded guilty to sexually assaulting a woman at the marina.

Obaidullah Walizada was in the Brighton Marina Car Park underpass when he spotted the woman cycling.

As she stopped her bike and got off, Walizada approached her and grabbed her forcibly from behind then walked off.

The assault happened at about 1.15pm on June 22.

READ MORE: Brighton: William Miller guilty of Whitehawk machete attack

Walizada was arrested shortly afterwards and taken to custody.

The 33-year-old, of no fixed address, appeared at Brighton Magistrates' Court on June 24 and was remanded in custody to await sentencing on July 15.

Police enquiries are ongoing and anyone with information should contact police online or by calling 101 referencing 651 of 22/06.