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 "monster" who bludgeoned his former girlfriend and her mother to death with a hammer has been jailed for at least 29-and-a-half years.
Karen Danczuk appeared on ITV's Loose Women as part of their 'It's never too late to tell' campaign.
Top footballers star in an Football Association campaign aimed at helping to ensure every child feels safe playing football.