More than 500 children have been identified as potential victims of online sexual abuse during a major investigation by Police Scotland.
The force said 30 million indecent images were seized and 77 people had been charged during Operation Lattise.
The charges include rape, sharing indecent images of children and grooming for sexual purposes.
Of the 523 potential victims, some as young as three, 122 have been referred to child protection services.
The operation, which involved 134 separate investigations, was carried out between the 6 June and 15 July.
Police said child victims had been found after the homes of 83 suspects were searched and 547 computers and other devices seized during the five-week operation.
Almost 400 charges have been brought so far, including rape, sharing indecent images of children, grooming for sexual purposes, sexual extortion, indecent communication with children, possession of a firearm, bestiality and drugs offences.
In one instance, a computer that featured 10 million images depicting child abuse was found. Police Scotland said it would take four full-time officers six months just to view the number of images uncovered.
Assistant Chief Constable Malcolm Graham, who led the investigation, said: “This is not sexting in terms of people sending abusive messages to each other.
“This is children being sexually abused and these images being shared.
“It is about real victims in Scotland and elsewhere. It’s about these horrific acts which ruin people’s lives and we need to make sure that stops.”
Mr Graham called on parents and carers to be “alert” but not alarmed and said there were people in society who used technology to identify children who may be vulnerable to exploitation.
The investigation involved officers analysing in excess of 100,000 online chat logs.
Examination of one device led officers to conclude that one adult suspect had been sexually communicating with more than 110 children and young people.
Det Insp Andy McWilliam, who was also involved in the investigation, said that new technology meant there was no way for perpetrators to hide or erase what they had done online.
He said: “Whether they throw the computer in the bath or not, we can find what they have looked at. And we can use covert technology to identify who you are and where you are.
“These individuals want to be wherever children are. They are using websites, chatrooms and forums.
“These men – and it is predominantly men – are using the profiles of younger children to groom them and offend against them.”
Police are also working with young people and parents to help raise awareness of the potential dangers of the internet.
They said a key aim was to prevent abuse from happening in the first place.
Figures from Police Scotland have shown that the number of recorded offences are growing each year.
In 2014-15, there were 23 offences of grooming children for the purposes of sexual offences. Last year it was 50 – an increase of 117%.
The offence of taking, distributing or possessing indecent images of children increased from 605 in 2014-15 to 645.
“Online child sex abuse investigation identifies 523 potential victims”