The girl sent a photo to a boy in her class before the image and her phone number were added to all-male online chat groups - she later started disappearing before being abused by "unknown men".
"Law enforcement cannot arrest its way out of this problem."
Sextortion is a form of blackmail in which a child is tricked into sending sexual images of themselves to abusers, who then threaten to share the pictures with friends, family or more widely on the internet if they are not paid money.
The Internet Watch Foundation (IWF) warns of a "shocking" rise of primary school children being coerced into performing sexually online.
Telegram’s CEO was arrested in relation to an investigation into an unnamed person involving claims of “complicity” in distributing child sexual abuse material.
The images that Nelson made have been linked back to real children around the world. In some cases, he then went on to encourage his clients to rape and sexually assault the youngsters.
Online child sexual abuse is at record high levels, according to exclusive figures given to ITV News.
The government says it is leading the way with its crackdown on AI-generated abuse images, after warnings the content was being produced at a "chilling" rate.
A rise in child sex abuse material has been linked to websites hosted in EU countries, according to the Internet Watch Foundation (IWF).
WIRED on IWF's new IntelliGrade tool. There are 150 child sexual abuse laws around the world. Now, metadata is making it easier for countries to work together.
Each day, a team of analysts faces a seemingly endless mountain of horrors. The team of 21, who work at the Internet Watch Foundation’s office in Cambridgeshire, spend hours trawling through images and videos containing child sexual abuse.
Under-18s who want nude pictures or videos of themselves removed from the internet can now report the images through an online tool.