A 17-year-old girl on her way home from a night out was sexually assaulted three times in one hour.<br /><br />The student became separated from her friends and was first seen on CCTV being carried by a man who took her into a doorway, where some of her clothes were later found.<br /><br />Shortly after midnight, another camera picked up the girl stumbling down the road being followed by a different, bearded man on a racing bicycle.
