Police said the man on a bike sexually assaulted the woman as he went by, leaving her uninjured.
Early this morning, they released a CCTV image of a “man they believe may be able to assist with their enquiries.”
They said he was Caucasian in appearance and about 175–180 centimetres tall with a moustache.
He was wearing a black cap, black hoodie with red trim, large gold watch, black jeans with ripped knees and white Nike runners, while riding a black mountain bike.