NORTH Melbourne has leapt to the defence of its players after several Kangaroos were unwittingly added to the 'The Brocial Network' - a Facebook group that circulates pictures of scantily-clad women without their knowledge.

The existence of the group, which was formed two weeks ago, became widely known on Wednesday when Melbourne newspaper The Age ran a front-page story about the site that makes pictures of women wearing bikinis and lingerie available to its members.

The story alleged four players from an unnamed Melbourne-based AFL club were involved with the group.

Those claims were repeated by commentator Gerard Healy on radio station 3AW on Wednesday evening, who suggested the players were from North Melbourne.

But that claim led to a swift clarification by a club spokesman.

"A few of our players have become embroiled in this Facebook site scandal, however, the players have been added to that group without their consent," North Melbourne media manager Heath O'Loughlin told 3AW.

"We need to underline that. Not all North Melbourne players frequent that page [as Healy asserted]. Only a handful were added to that page without their consent. After becoming aware that they were added to that page they have deleted themselves from that group.

"We've spoken to our players about this page and its existence. We've since become aware that a few of those players have been added to the page without their consent, but we're very happy with the fact that those players have since deleted themselves from the page.

"We are extremely confident that none of our players acted inappropriately in any way, shape or form."

Facebook has security settings that allow users to pick and choose which groups they patronise, but O'Loughlin said that this particular group had somehow circumvented those safeguards.

"In this case you get added to this group without your knowledge and that's extremely concerning," he said.

"There are a lot of security settings on Facebook pages and we implore all our players to utilise those security settings and be very responsible with their pages, as they have been.

"There's more social media now than ever before, but each club has a media policy and social media is covered in that. We're extremely confident in our policy and we're also extremely confident in our players with their use of social media in a responsible fashion."

The club will launch an investigation into how its players, who remain unnamed, were added to the group.