Germany police announced "Destroying one of the world's largest online children erotic platforms" with more than 400,000 members.
German police today said this children's porn foundation existed since 2019, "was set up to exchange children's pornographic contents worldwide, especially boys abuse"
This forum allows users to exchange with each other, sharing image and video content including "serious sexual abuse images with young practices".
Police arrested three men aged 40 to 64 in 7 raids in Germany, while another suspect was detained in Paraguay at the request of German officials.
German police in a campaign on April 29 in Potsdam City, the capital of Brandenburg.
The three main suspects aged 40, 49 and 58, accused of being a platform management administrator, technical support and counseling for members to avoid being detected by the government.
The remaining 64-year-old suspect, Hamburg, is "one of the most active users of the platform", with "over 3,500 posts" on the platform since becoming a user in 2019.
"The destruction of a clear message that: If you commit crimes with the most weak people, people will not be able to safely hide," said the Minister of Interior Horst Seehofer.
"We are bringing the culprit to court and doing everything can to protect children from this disgusting crimes like this," he added.
Investigators said the investigation activity lasted for many months led and the European Police Agency coordinated, with the support of the Dutch, Swedish, US and Canadian law enforcement agency.
The survey conducted by the Federal Federal Police and Federal Prosecutor in Frankfurt, has implemented 7 raids in North Rhine Westphalia, Bavaria and Hamburg City in Germany.
Eva Kuehne-hoermann, head of Hesse state judicial agency, praised "great success in the fight against sexual violence with children".
"The investigators once again show that the law enforcement agency operates in the black network world and the type of crime in the world cannot be safe in it," she said.
Black websites are hidden with most Internet users, can only be accessed using encryption technology.