Australian police bust child pornography ring Computers, hard drives, laptop computers, portable storage devices and mobile phones allegedly containing hundreds of thousands of child abuse images and videos were seized, they added. "We did have children at the premises at the time of the execution of search warrants and the police have engaged the locally-based welfare agencies, and assessments have been undertaken," he said. McEwan would not say where the pornography was made or whether those charged made it, but added that various ethnicities were represented in the material. "Allow me to place on record my personal disgust of the abhorrent nature of activity associated with the exploitation of children," he said. Home Affairs Minister Jason Clare called it "a really important breakthrough." "The work the police are doing to protect our children against predators who seek to harm them is tough and I congratulate them," he said. According to police, 850 people have been arrested in Australia over the past seven years on charges relating to online child sexual exploitation.