A thirty-year-old Preston man is one of 16 people arrested as part of a nationwide operation targeting online child sex abuse.
Lancashire Police has been working with the National Crime Agency on the operation, which targets those who download indecent images of children.
Sixteen people have been arrested in Lancashire in the last six months for possessing or distributing, including a 30-year-old man from Preston.
They have all been bailed pending further inquiries.
Nationally the operation has seen 431 children safeguarded, 660 people arrested, 9,172 devices seized and searched 833 properties searched.
Detective Chief Inspector Claire McEnery, from Lancashire Constabulary’s Public Protection Unit, said: “Tackling child sexual exploitation is a priority for Lancashire Constabulary and we are absolutely committed to preventing child sexual abuse, helping victims and bringing offenders to justice.
“We are determined to stop children being abused and exploited; to prevent harm to those being abused, to help young people to stay safe online, to bring to justice to all those who commit such abhorrent crimes.”