Over the last week four men have been arrested in Sydney for allegations of involvement in a Sydney-based international paedophile network.

The network is said to distribute and facilitate child sex abuse material through a website administered internationally.

This was uncovered in an investigation into the online distribution of child sexual abuse material involving ritualistic and Satanic themes.

Australian correspondent Oliver Peterson told Heather du Plessis-Allan the men arrested were allegedly part of a media network aiming to expose sex abuse rings.

"So it gives the idea obviously that they're there to help, that they're there to uncover these sorts of rings, but the people involved are allegedly also paedophiles themselves," Peterson said.

LISTEN ABOVE