Rochdale.The 'horrific' attack happened as the girl walked towards Mainway just before 9.30pm on Sunday, November 1.She had just got off a bus nearby, police said.An investigation is underway and no arrests have been made.Detectives have now released CCTV images of a man they want to speak to in connection with the assault.The pictures were captured on board a bus.Police are also urging anyone with information about the man or who witnessed anything suspicious to get in touch.Detective Constable