CLEVELAND, Ohio (WOIO) - A warning, you may find this story disturbing.

Children and teens have been self-harming, even setting themselves on fire in some instances, following directions online from a network of violent extremists called “764.”

Then these predators are demanding that the victims send them photos and videos of it all.

19 Investigates spoke with the FBI about what parents need to know and what they’re seeing right here in northeast Ohio.

Assistant Special Agent in Charge for Cleveland’s National Security Program, Ryan Presley, and Supervisory Special Agent Michael Miller spoke with us about this very real, dangerous threat.

“The underlying core tenet is their desire to degrade or destroy our society through the exploitation of minors and/or other at-risk individuals,” P

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