South Wales Police is investigating a sexual assault which occurred in Cardiff Civic Centre during the early hours of Sunday, September 20.
A 20-year-old woman was assaulted by an unknown man at around 3am near the Cardiff University Main Building.
Extensive enquiries including forensic examination and CCTV checks are on-going to identify the man responsible.
As always we would remind people when walking around at night or returning home from a night out to do so in pairs or groups and to stick to well lit areas.
Anyone with information is to contact South Wales Police on 101 or Crimestoppers anonymously on 0800 555 111 quoting occurrence number1500346785.