Police are investigating a report of rape of a 13-year-old girl which happened at around 4.45pm on either Thursday 10 December or Thursday 17 December 2015.
The rape was reported to police on Sunday 3 January 2016 and happened as the girl walked home along a footpath that leads between Mainway East and Wince Close in Middleton.
As she walked along the footpath after getting off the bus a man approached her from behind. He grabbed hold of her and pushed her to the floor where he raped her.
The girl did not initially report the incident to anyone but is now being supported by specially trained officers.
The man is described as white, aged in his 20s or 30s and of a medium build. He spoke with a local accent. His face was covered so only his eyes and mouth were showing. His lips are described as red as if they had a rash around them and his teeth being crooked. The girl described him as 'having some teeth behind his teeth, as if it was a second row'.
He was wearing a black polo t-shirt with black buttons and white button holes and a white logo. He was also wearing black jeans or tracksuit bottoms that tied at the top and black Adidas trainers with black stripes and laces.
Police are appealing for information and witnesses.
Detective Inspector Damian Simpson from the Serious Sexual Offences Unit said:
Anyone with information should call police on 0161 856 1911 or the independent charity Crimestoppers anonymously on 0800 555 111.