Eleven men have been arrested as part of an investigation into online child sexual exploitation in Bradford District.
Last week detectives executed warrants at addresses across the district in response to information about people suspected of using devices such as computers and mobile phones to contact children.
The operation also saw more than 25 devices seized for further investigation.
The men, who were aged between 19 and 56, were questioned and later released under investigation or bailed to allow for further enquiries to be made to establish the extent of any offending.
Detective Chief Inspector Alan Weekes, said:
Councillor Adrian Farley, Executive Member for Children and Families, said:
For more information and advice on CSE, please visit http://www.westyorkshire.police.uk/advice/child-protection/child-sexual-exploitation/child-sexual-exploitation