At around 3.10pm on October 15, police received a report of a rape which had taken place the night before in a field in Hale.
Officers attended and found a 39-year-old woman with minor injuries who was taken to hospital for treatment and is now being looked after by specially trained officers.
A 35-year-old man has been arrested on suspicion of rape.
Enquiries are ongoing to establish the full circumstances around this incident.
Anyone with information should contact police on 101, quoting incident number 1552 of 15/10/17. This can also be done anonymously through the independent charity Crimestoppers on 0800 555 111.