Some 76 people have been arrested during 48 hours of raids as part of an operation targeting suspected internet paedophiles.
A Scout leader, a retired teacher and members of the Armed Services were among those detained by officers from more than 40 police forces, who executed more than 141 search warrants in the operation led by the Child Exploitation and Online Protection Centre (Ceop).
Most of the warrants related to image offences, including the possession and distribution of indecent images of children, Ceop said.
More top news
Donald Trump has blamed 'radical Islamic terrorism' for UK's 13% rise in crime.
Theresa May said she is "ambitious and positive" for a Brexit deal as EU leaders gave the go ahead for preparations for second phase talks.
Merseyside Police have launched an investigation after crowd trouble at Goodison Park - during which a fan appeared to attack a player.