Five men arrested in Bolton on suspicion of rape or conspiracy to commit rape have been bailed until next January.
Officers from the Greater Manchester Police Serious Sexual Offences Unit coordinated the operation at various address across the town.
It follows allegations that a 15-year-old girl suffered numerous sexual assaults between 2011 and 2012.
More top news
A man whose wife and son died at Furness General Hospital says he has never received an apology for failings which led to their deaths.
4cm snow recorded over Shap - sunshine and showers for Tuesday, snow over hills. Windy and cold. Icy into Wednesday, then less cold
After a most unusual trial in Brooklyn, jurors now must decide whether Abid Naseer plotted to blow up a Manchester shopping centre.