Police are appealing for witnesses after a woman was raped in south Manchester.
It occurred in the early hours of Saturday 29 October 2011 behind Didsbury Library.
The 47-year-old woman is currently being assisted by specially-trained staff and officers from Didsbury CID are investigating the circumstances surrounding the assault.
The offender is described as white, of a medium build, in his late 40s, clean shaven and bald or with a shaved head.
Detective Inspector Mark Radford, of Didsbury CID, said: "I understand this incident has caused a lot of speculation and unrest in the community, and that is why it is important we issue this appeal.
"I want to stress that we are investigating this matter thoroughly and officers will do everything they can to establish the circumstances surrounding exactly what happened and this is where the public can help us.
"If you saw or heard anything near Didsbury Library, or recognise the man from the description, then please come forward as what you know could be vital.
"Specially-trained officers are also providing support to the woman."
Anyone who has information should call Didsbury CID on 0161 856 6152 or the independent charity Crimestoppers, anonymously, on 0800 555 111.
Anyone who has been a victim of rape or sexual assault can contact Greater Manchester Police on 0161 872 5050 or 999 in an emergency. GMP has specially trained officers in place to provide a first class response to victims and help support them through the criminal justice process.
St Mary's Sexual Assault Referral Centre in Manchester, can also be contacted on 0161 276 6515. This provides a comprehensive and coordinated forensic, counselling and medical aftercare service to anyone in Greater Manchester who has experienced rape or sexual assault. Services are available on a 24-hour basis and people can access them either as a self-referral or via Greater Manchester Police.