Police have arrested 11 men as part of an online sexual exploitation investigation.
The men are suspected of using mobile phones and computers to contact children and possibly arrange meetings with them.
Officers from West Yorkshire Police carried out raids last week and made the arrests as well as seizing 25 devices.
The men, aged between 19 and 56, were quizzed by detectives and later released under investigation or bailed to allow for further enquiries to be made to establish the extent of any offending.
The operation centres on Bradford.
Detective Chief Inspector Alan Weekes said: “West Yorkshire Police is committed to tackling child sexual exploitation in all its forms by working with partners to protect those who may be at risk and taking action against the perpetrators.
“This investigation was launched following information received from the public and partners about people in Bradford District who were suspected of using computers and mobile phones to contact and potentially meet up with children.
“We want to make it clear to those committing such offences that you cannot hide behind your mobile phone or internet use and we will target you, as we would do in any other situation where a child or children are being exploited.
“This is an ongoing investigation and we expect to make further arrests as our enquiries progress.”
Councillor Adrian Farley, Executive Member for Children and Families at Bradford Council, said: “It’s a good result that the police have made these arrests.
"It sends out a strong message to anyone thinking of committing these sorts of crimes that grooming children online will not be tolerated. It also shows that when partners and the public let the police know of potential offences, action can and will be taken."